I discovered MRP a few days ago. I was aware of RP in general but never put much thought into it. I read through posts on MRP and some things really resonated with me. I decided to go through the sidebar and learn as much as I could. I was already doing some of the things I needed to do but my lack of knowledge as far as how to handle my wife was fucking my marriage up even more than it was. I'll just give you a rundown of the situation and where I stand now so you understand.

I'm in scenario 3. My marriage is on the verge of collapse. My wife is a domineering bitch and I was the typical beta/do whatever she wants kind of pussy husband. About a month and a half ago, I snapped. I just got so sick of it that I couldn't handle it anymore. I looked at myself, this turd of a man, and it turned my stomach. I got myself a gym membership and started working out 4-5 days a week, 3 days doing heavy lifting. I started ignoring her and doing whatever I wanted. Unfortunately, I discovered MRP a few days ago instead of at the beginning. My interactions with my wife have been pretty hostile from my end for the last month or so and despite starting the workout, I neglected the other parts of self development. When I say hostile, I'm not just referring to my reactions to shit tests. It's more like she'd ask me how my day was and I'd tell her to fuck off and go play with my son or do whatever I want. You have to understand that I'm in this place of extreme anger and resentment toward her. After reading NMMNG I realize this is because I had tons of covert contracts which, not surprisingly, she didn't live up to. You guys can guess where my sex life stands.

I'm sick of feeling sorry for myself and I want to apply the things I've learned but reading the MRP posts it seems that the old maxim "a little bit of knowledge is dangerous" definitely applies here. My question is, at what point is it safe to start applying this knowledge? I can backpedal from being an asshole in normal conversation because now my anger is being directed at me for letting myself turn into such a pussy, but I'm not sure where to go from here. Clearly I'm going to keep reading and lifting but beyond that, how much of this content do I need to go through before I start using it without risking fucking something up?

Sorry about the vomit mixed in with the question. Thanks in advance.