"Locks of Love is a public non-profit organization that provides hairpieces to financially disadvantaged children in the United States and Canada under age 21 suffering from long-term medical hair loss from any diagnosis." it took me a few years to grow my hair to the required length for donating . I ended up cutting off about 15 inches.
I know I've said this before but if there's something you've always wanted to do then start today. small steps.