To add to this: find a sport you enjoy and keep doing it. Don't be afraid to test and iterate.
And remember, if it took you 20 years of practice to become a hardened couch potato, don't expect to change overnight.
And remember, if it took you 20 years of practice to become a hardened couch potato, don't expect to change overnight.
Some people enjoy repetition. Some... really don't.
For me the challenge is to keep finding new interesting sports.
I've been boxing almost every day for almost 6 years now. The more into it I get, the more there is to discover and the tougher my sparring partners get. It really doesn't feel like repetition at all.
So maybe you just haven't found a sport you liked yet. Or haven't given them enough time to reach a level of mastery where it doesn't feel so repetitive anymore.