Should I do this

I have always had a routine of 1 on 1 off, but I was thinking to do 5 on 2 off with jelqing and stretches on one day and just clamping the next day. What do you think of this?

Yes, it’s time to move up.

Changing things up is generally a good thing from time to time. It also gives you a chance to see what works better for you.

It depends on what results you’re currently getting. If you’ve been doing 1 on 1 off for a while without getting any results, step it up a bit. If it’s too early to tell, stick with that one for now. The way I see it, 2-3 months of PE without results isn’t a waste, because you learn what doesn’t work and what not to go back to in the future when your second or third routine doesn’t work.

Build it up. Getting from 1/1 to 5/2 is a way to big step, rather do 2/1, then 3/1 etc until you get to 5/2. You might go even further, to 6/1 or 7/0.