If you want a good bodyweight exercise routine, my recommendation is Charles Bronson's Solitary Fitness. These have clearly worked in his case, and having done it myself for a couple of months 3 or so years ago I can attest that it's pretty good. He also is remarkably knowledgeable, and his insanity also makes the book an interesting read at times. Firstly, there's the phenomenon of baby gains; for your first few months especially, you will develop pretty well in strength even if you are running a caloric deficit. Secondly, there is the fact that increased muscle mass increases your metabolism and thus will make future weight loss easier. Third, your goal should always be fat reduction rather than weight reduction - if you were to manage to eat at perfect caloric equilibrium during a programme, then you'd probably see over time your body weight remain the same-ish but you switch from fatmode to leanmode. My recommendation is that you should aspire to a 500ish kcal deficit a day while following a lifting routine mixed with 20 mins of HIIT. The increased lean mass and test will do wonders for your confidence and figure. As for sups, think of them as catalysts that expedite your development rather than core ingredients. If you want the speediest and most efficient transformation, I'd recommend a whey+BCAA mix before a workout and a larger whey+creatine mix after a workout. Also, good multivitamins really expedite recovery. If you can also source a large quantity of Vitamin D (through dedicated supplements), that also tends to increase the speed of your progress. Just go to the gym and either ask one of the staff to spot for you or a guy resting between sets to help you out. People at the gym are generally extremely friendly and supportive (most of them have been where you're at), and are happy to lend a hand. I frequently ask total strangers to spot for me; just make sure you're willing to do the same for them.