What is a fun hobby/sport I could start?

Never think that your age limits your options! I am 38 and just learned to crochet about 1 yr ago. It is so relaxing and addictive. I started out very simple and learned how to make granny squares. Now I can read patterns and make just about anything I want to make (although I haven't tackled apparel yet!) including stuffed animals, doilies, blankets, pillows, etc. There are so many good websites out there that will teach you how to do the work and you can find a lot of free patterns as well. Just google crochet, how to crochet, free crochet patterns, etc and you'll find something you like. The best thing about it is that you can use your completed projects as gifts for family and friends and you can even sell the items at flea markets, craft fairs, and holiday bazaars. I hope this is helpful. Give it a try. I think you'll like it.