Beachbody alternative for Noob

Hi! I bought a package for beachbody a little over a month ago. I like the videos a lot and it has actually gotten me to work out regularly, which I have always struggled with. After research on the super expensive supplements, I can tell its not worth it for the shakeology and energize supplements. I bought some protein powder at Costco for now, but I am really wanting to get the best for me and a pre-workout supplement too.

I don't want a high caffiene content - I currently don't even drink coffee daily. I am also on thyroid medication so no tyrosine. I like more natural if possible for the pre-workout, but I do need something to help me in the mornings have the energy for the workout.

For protein, I like vegan but am open to whichever would be best for a very beginner workout.

I really didn't workout at all for 5+ years and before that it was mostly dance. I have a weak core and poor balance. I am super tight so I have been doing a lot of yoga with Pilates. I don't need results fast I just want to do this correctly.

Also, my budget is tight right now so keep that in mind. Thanks!