I need a list of Crazy/Fun things to do in the summer (by myself tho)?

for some reason im just not hamging out,with any of my friends right now..:/i have this guy who is like my bf but we dont txt tht much..so tht dosnt help but we do hangout. And then my "best friend"dosnt even talk to me anymore..well shes MIA..and my other best friend is away this week.. So im just always alone..But I need a list of some crazyyy fun things to do before summer ends..? thanks!