Okay so I know these beginner questions are probably really annoying but I hope you can forgive me for adding another one. I've been hit hard by paralysis by analysis and have started to break through and settled on working with rings as I really enjoy them and a bit of kettlebelling/sledgehammer swinging. Only problem is I'm pretty darn weak!
Can't do a single pullup or dip on regular straight bars and I couldn't even help myself in the basic support position on rings

. I tried using a resistance band to keep me up but it was really sloppy so I pretty much figured I need to work on the ultra basic stuff before I get to even the regular basics! I'm really trying to work on my diet and may give the Warrior Diet (I know I know) a go because I kind of like the eating style but I am confused as all hell on how to train. Seems to me like getting good at even just basic pushups and rows on the rings at an appropriate heights would be the start but not sure if I should throw in some support holds on regular straight bars to try to build up that strength somewhere or if that's unnecessary. Also would it be appropriate to do a small basic ring routine and then finish off with a conditioning with kbells and such maybe 3 times a week?
Hope this post made sense. Thanks for all your help.
EDIT:
I'm about 5 '9 and weight 225lbs or so.