Dieting Living

I was strict keto from 4/26/18 until around mid November. Lost 20lbs but been in a sorta-intentional maintenance mode for the last month and a half. Now that i’m ready to get back to losing/cutting, I need to get serious this time around about making my body stronger. I have serious posture issues that causes me on and off back pain that i’m getting really tired of. The top half of my back is pretty hunched over in a “resting” position and my lower back is pushed forward (belly sticks out further than it should IMO). My main goal in growing physically stronger is to realign my entire core (back, shoulders, abs).

I’d like to start with body weight exercises first and i’m here to see if anyone has and suggestions for me but please keep in mind that i’m a beginner �

Female, 24, CW 155 (keto SW 178)