I have added a lot of new challenges inside the group fitness, diet, skills, fasting, cold exposure and more. Thereâs something in here for everyone, no matter your level. Remember, this is your challenge. Pick the one that fits where you are right now and commit to it properly. These are just some ideas for you but you can pick whatever challenge you want. Donât overthink it. Donât wait for the perfect time. Starting is the key.