Can’t stay asleep

Honestly this is my last resort, I usually wake up around 3-9 times a night. I go to bed at 9:30 and wake up at 6:25 so I’m getting enough sleep but I just keep waking up. I take melatonin at night but only on week days, I recently tried long release melatonin and it didn’t help at all. I’ve had a sleep study and they said I’ve got restless leg syndrome. I try to exercise when I can, I’m usually too tired to. Any tips?