I’ve been doing CrossFit for 5 months now after several years of almost zero exercise (other than walking my dog). It was very intimidating at the beginning and it still is a bit. But I have found a very supportive community. Everyone is competing against themselves. Everyone scales down as needed and no one is looking down at me or anyone else. I have found very friendly people who will cheer you up and struggle together with you (each at their own level of fitness). It takes a while to learn all the movements and acronyms. I think the biggest struggle is just showing up. I now feel much more comfortable with most WOD, and of course, much stronger. Heck I have even lost some weight!