Get a free one month trial with Classpass and try different things. I was at rock bottom after my divorce and Classpass is what motivated me to get into fitness. Through that, I discovered hot yoga suited me the most. It was painful, no doubt. I envied the strength of the other people there, and never could have imagined I’d be able to do a lot of the poses. I stuck with it and have made such huge progress. It’s impacted my strength, flexibility, balance, patience, focus immeasurably. You can’t expect quick results - it’s incremental, and your muscles will learn to adapt. Finding what suits you and sticking at it is the key.
I totally agree with @heidiwine - I’m an introvert too, but love the communal aspect of a class. It’s quite a wonderful sight when we are all moving in unison; all different abilities, ages, body shapes and weights, men and women. Nobody gives off competitive vibes - they focus on their own practice. I’ve met some wonderful people, and the space and teachers have such a lovely energy. It’s an integral part of my life now, but it’s been a journey to get there. I did try gym equipment, but I got bored. Classes work for me as there’s a shared purpose.
The other thing that motivates me is wearing lovely gear to my classes! I really lacked confidence in my body as I’ve always been skinny, flat chested, shapeless. It’s taken me to get to my 40s to appreciate and actually like my body. I’m more toned now. Wearing nice fitness outfits has helped me with my body image.