Should i pracrice timing my meditation? I simply stop when i feel fulfilled.

It is ok to stop when you feel fulfilled. If you want to time your meditation sessions, I think you should start small and work your way to longer sessions in small steps.

I do my meditations in the morning before I do everything else, I start my meditation and usually, I have 10 mins set but if 10 mins passed by and I feel good I keep meditating until I feel completely awesome, because I think about it that this is my energy boost in the morning and then the rest of my day is usually great so I always try to make meditation best as I can.