Take some time out to grieve if you need to.
Repressing it may only string it out and feeling like you haven't done his memory justice.
Talk to a pastoral tutor of some kind at uni, get some advice, see what avenues you have.
I know the feeling of having kept to myself for too long and thinking everyone else is busy. It's hard when you're not feeling it to just put yourself out in the middle of it.
It can help to find something new. I'm going to recommend dancing as I always do - but there are plenty of other groups of people that do stuff, who'll welcome in someone new - have a look at the uni societies list and get in contact with one of them
Repressing it may only string it out and feeling like you haven't done his memory justice.
Talk to a pastoral tutor of some kind at uni, get some advice, see what avenues you have.
I know the feeling of having kept to myself for too long and thinking everyone else is busy. It's hard when you're not feeling it to just put yourself out in the middle of it.
It can help to find something new. I'm going to recommend dancing as I always do - but there are plenty of other groups of people that do stuff, who'll welcome in someone new - have a look at the uni societies list and get in contact with one of them