Re: Bye bye happiness :(
Putting your money in the bank right now is a waste of time, interest rates are soooo low. If you "invest" 300 dollars, in two or three years, you'll have 300.32.
Don't be in a hurry to spend it just because you have it.
As for your "last ride" take your time, go where you want, and don't horse the bike so that it's still sell-able when you are done.
Maybe you'll be back at it someday? The hobby will still be here in a few years when your parents can't tell you what to do.