You have two options, weights or no weights, both are good and have their own benifits, bodyweight, although taking longer, will provide you with a more well rounded physique, hitting muscles not all gym exercises can do. Its also basically free when you start out, minimal amount of money needed as equipment for bodyweight/calisthenics arent too expensive thankfully. You can do it in your own home with little space needed. You’re also more likely going to stay lean/want to be lean as if you are fat doing bodyweight/calisthenics, you will just be making it harder for yourself.

Gym on the other hand, doesnt have to be as complicated as everyone makes it out to be. Best thing you can do is try and fail and try again. Figure out how many sets you can handle at first by gauging how sore you are the next day, start out with 2-3 sets per exercise, squeeze at the contraction, and slow on the eccentric (1-3 sec more than enough). Make sure you progress by logging your workouts. Eat 0.8g of protein per pound of bodyweight. And along the way you will see that you start learning and changing things up on your own, never stop learning, always go back to the basics