I have three, maybe four, possibly more 'systems' depending where you draw the boundaries.... What 'really' is the problem?
Seems your main problems are 1) trying to do it all with a 'one-size-fits-all' camera. 2) getting up to speed / familiar with a new, 'one-size-fits-all' system.
My 'basic' outfits are, 1/ a 'fast-photo' film kit. A pair of Olympus OM's, winders, and zooms. 2/ Widgetal Crop-Sensor SLR & zooms.. which has essentially replaced the Fast-Foto Ollys, as front-line picture maker. 3/ Clock-work, Sigma Mk1 and all 'prime' 'slow-photo' outfit.... 4/5/6/etc... is a bunch of 35mm compacts, and range-finders, a 120 folder even a Minox Sub-mini and a few widgie-compacts including an action cam.
Each 'system' has it's strengths, weaknesses and purpose, and gets used for 'different' stuff. The Wigi-SLR, probably the least TBH.
Most used, is probably one of the compacts.. top candidate, the Olympus XA2 film camera, which is just so pocketable.... still gets used now, and for day-trips, and landscaps, its more than 'enough' camera most of the time, and brilliant for candids... a digi-compact, with inbuilt zoom, is so much more SLR versatle, and with a little know how can do an awful lot without having to look through a persiscope or swap lenses.... fits in your pocket too.
Point is, SLR obscession and GAS. It's not what you got, its what you do with it!
There's nothing that says you hav to Do-It-All with a single system or single camera. Packing everything into a gadget bag, does lead to you taking EVERYTHING with you ALL the time.... also leads to looking at holes in the gadget bag and wondering what you need to fill them, and/or what else you need to get 'that' shot you cant quite achieve with all the toys in the toy-box.
Nothing wrong with multiple systems or more cameras; but, it seems to me that the main problem here is two systems that are too 'close' in what and how they do things, and to much aspiration placed on the gear getting the picture, rather than your know-how.
My advice? Pack away the 'outfits' - Pick a Camera... go use it!
When you run up against the buffers... REAL buffers, in so much as you actually cant get a picture with a bit of craft, not 'the best' picture, not 'the picture I image', and certainly not 'that effect'.... but ANY 'decent' photo...... Try harder, try something different. DON'T expect the camera or the gadgets to do all the work you cant, and appreciate what you get, not what you don't. With all the toys in the box, WOULD you get anything any if at all 'better'?
THEN, when you are getting better pictures, and are NOT thinking camera, BUT thinking pictures... THEN return to the 'outfit'.. and ONLY pack in the gadget bag 'exactly' what you think you 'need' for a photo..
Learn to be a photographer, using know how as your primary photogaphc tool, and that know-how dictating the gear you pack for any picture, rather than being a photo magpie, trying to snaffle whever you happen to see, whether picture or toys.
Its all in the aproach... and if you have the know-how, the question should sgnificantly be redundant. Doesn't matter how many cameras or camera outfits you possesess. They may all have good reasons to be, ad you should know what that reason is.
Eg: the DSLR's reason is that its fast-foto. Quick and Easy, and bangs out photo's that are instant upload ready. Its convenient. Slow Photo-Film camera, begs more thought and involvement; makes me think harder and try harder and I probably get a higher yeild of 'keepers' The compacts? Slip in my pocket. The little XA flm camera, wondefully, and despite its technical limitations, begs some deliberate 'work' on my part to get the best from it.. or not. Zoom compact can do a bit more, but down to me, not the camera, and slips in the pocket for whe oportunity arises. Others? Fun to use, when I am in the mood, and 'may' have some feature that makes them more useful for some stuatons; like the OM and winder sat waiting for me to load with B&W to have another crack at Tri-Chrome colour, or the action-cam sat wating to be clipped to the handlebar bracket on the motorbike!
They may ALL have good reason to be, and I may have more than one system on me when out and about; eg, the AX compact in my pocket with the DSLR on my shoulder, or the Sigma & 'a' solitary prime, on a strap around my neck.
B-U-T the issue is you are thinking cameras, NOT pictures, here; and tryig, it seems, to cover all options wth a One-Size-Fits-All, do anything you hope, if you chance upon it 'outft', expecting that to serve up all you hope, rather than making anything work for you.
So advce is to back up; stop thinking gear, start thinking picture. Stop thinking 'outfit' and start thnking 'camera'.. change the aproach, not the hardware.
Pick a system... cut to the chase, and make that system skinny! One camera, one lens, one IDEA! And get the know-how to use what you got to the max and know when something else 'may' actually help, rather than add to the amount you probably dont give enough thought to.
