What is something constructive i can do?

Question

i want something that will exercise the brain. i have one of those electronic things where u have the diodes and stuff and make circuits and c**p. but that looks boring. my hobbies are basketball, producing music, parkour and cars. too sunny to play b ball and it's sunny. don't really feel like producing. where the c**p am i supposed to learn parkour. what the c**p am i supposed to do with my car? fuel cost too much. i don't unnecessarily want to do something relating to my hobbies. just as long as i exercise my brain and imagination.

Answer 1

One of the toughest but most useful exercise for the brain is to learn a foreign language like Spanish or Russian;  do it in 6 to 8 months.

Shorter but less challenging is to learn the name of all the birds of North American, and be able to recognize them.

You can replace 'birds' by 'insects' or 'plants'.