I just started getting serious for the 1st time in my life about weight lifting. I so far have had good results doing a 5 day split.
I mostly eat chicken or steak and rice or potatoes. I take multi-vitamin and flax seed oil and drink a pre and post workout drink. I try to eat as soon as I wake up after a trip the the bath room to brush my teeth

and I also eat something right before bed.
So far so good. As a suggestion, when you start and add new moves, take your time and learn all the movements before you go up too fast in weight. So far I've hurt myself twice trying to push too hard too fast.
You learn as you go but read up and you'll find a lot of good advice to help keep you from wasting time or making simple mistakes that will hold back your progress and when in doubt, just ask for help.
Good luck and start a log to track your progress.