If I don’t make it, I’ll be very sad that there….

If I don’t make it, I’ll be very sad that there are things I didn’t do, but I’m happy that I’ve done what I have.

If I don't make it, I'll be very sad that there are things I didn't do, but I'm happy that I've done what I have.
If I don’t make it, I’ll be very sad that there are things I didn’t do, but I’m happy that I’ve done what I have.