Hey Murda,
Its been a while man.
You were one of my biggest rivals. I am still recovering from the bruising I took in that 2nd challenger final we played!
I think you made the right choice of taking a break for your studies. At your age dude school is important, you have a whole lifetime to play computer games and topspin!
I am the same, whilst I am 29 years old, I am 4 papers away from qualifying as an accountant (i have been studying for years, GCSEs , A levels, Degree, Masters and now ACCA / accountancy).
I am entering less tournaments over the next few months (SIM) as I want to prioritise my studies too, probably will just play the Slams, Masters and 500's.
So to answer your question, i think plying the odd tournament (ITST) is ok as long as you are only in say one at a time, because then you will only have to commit to playing 1 match 1 hour max (probably only 20 minutes for you in the speed you knock your opponents off the court

) every 4 days or so which is just like commiting to your favourite TV programme.
If you were in like 3 tournaments at a time then that would be too much in view of your studies.
Looking forward to seeing you back properly in summer.
Peace
Baghdad
They call me Baggy...
TS3: No.1 MSS - retired (15 titles)
TS4: No.3 MS - retired (2 titles)