It's so encouraging to see you posting and sharing your determinations.
It's easy to get carried away when first back in the gym so I'm just going to post the foundations of form here for all others getting back into the physique groove.
-Pause at the starting point of the motion
-Initiate the motion with the target muscle
-Squeeze at the top
-And control the negative
I keep the rep range in the 12-15 range at the start of any new routine, and even then not to failure. This gives the joints and tendons a chance to aclimate as you gradually increase the weights and drop the reps.
In the coming week just start noticing your nutrition intake and as you consider your immediate physique goals (i.e. cutting, bulking, or otherwise) you can gradually implement changes.
And, of course, post up your workout routines, ideas, questions, etc. to maintain a sense of connection with like minded individuals.
It's a fresh beginning...