I don’t think it’s a big deal to start off using machines. If you’ve never really worked out much it can be a bit less intimidating and if that gets you to workout out more go for it. Yet if you have a coach I would start asking them about doing the compound exercises and teaching you good form. Even if you are in really bad shape practicing doing the movement unloaded will help you understand how your body moves and what good form feels like.

I also think one of the biggest hurdles people new to exercise (especially strength training) is patients. It takes wayyyy longer than you expect to build up enough muscle to do some of the bodyweight exercises (pushups, pull ups, etc.) I don’t say this to discourage you but to re-set your expectations. You will see improvements but it does take time to get there Please Don’t give up. it’s really worth it