Going to the gym is useful, as long as you insist. There are many sports equipment in the gym, so you can exercise different parts. Now there are some dances and yoga for reference. And everyone is working out, and the atmosphere is very good. You can hire a coach if you have the conditions.
But it is often impossible to go to the gym, so when looking for a gym in the early stage, it is easy to stick to it if you want to find a place close to home or with convenient transportation. There is also the best small partners to urge each other together.