I think your only disadvantage is you're only 15. It takes a lot of time to cultivate an interest, work at it, get better and better at it, until it turns into a talent or skill.
I've been getting praise for my writing since I was 13, but that's because I started scribbling on blank sheets of paper since the 1st grade. I would even illustrate my own storybooks, purely for my own pleasure.
Writing is an activity where you can improve tremendously with consistent practice over a long-term period. If you're truly interested, schedule blocks of time, spread over weekly, when you'll do nothing but sit in front of your computer and type away.
With crafts, why not start afresh, but this time, try simple projects. I once turned a red wine bottle into a quirky-looking vase by using hot glue to attach buttons, and it took me less than an hour to finish.
Making greeting cards and bookmarks are relatively easy, too, or even cute gift tags that you can use for birthday and Christmas presents.