I wake up at 8 a.m. every day to go to class.
I've been going to bed at 1 or 2 a.m. for the past two days.
I go home immediately to catch up on sleep in the afternoon.
Now I've just woken up from another nap.
I'm afraid to take a nap in the afternoon.
Once I start sleeping, I can't get up in the afternoon.
How can I improve my sexual performance?