If I only had time to train one body part, I would go for the biggest bang for my buck and train glutes because it's one of the largest muscles in our body and it's the steering wheel that controls how our body performs through life. We also get to train our hips, core and legs while we're at it.
DO THIS TODAY:
Step 1: Decide on a time. Set an alarm. When it goes, off, start training (don't give yourself the opportunity to self negotiate)
Step 2: Pick your favorite playlist and train with me! This is a follow along!
Step 3: Here's what you need and what you'll be doing: dumbbells, resistance bands and (step risers if you have them)
a) standing clamshells. hold onto a wall
b) Reverse lunges x 2 sets
c) RDLs x2 sets
d) Weighted Glute Bridge (feet on floor is fine)
e) Abs: alternating toe taps
You're gonna complete the Trigger --> Behavior --> Reward loop here and POST your completion with a "done"! The declaration locks in the habit.