Tips for living in a House-Share?

The most common problems with house sharing is that shortly, one or more decides to move out and
leaves the remaining to pay all the rent. Roommates party till all hours with no consideration for others.
One person buys food for himself and others steal it. Some move a friend in and they don't contribute.
Some people like things clean, and others never clean.
Just some starters for you to consider.

when you move in with anyone else, you have to set rules like can they move anyone else in, how often can they have sleepovers, how often can they party, who cleans and who pays what. I have found that over the years I have wanted to kill roommates and so don't have any. Maybe we were all too young to be considerate and maybe some people are the type of person that takes advantage of others. And if they move out, what happens to you?

If you are a party animal, like being around others, possibly have several siblings then house sharing may be for you, if not and you like your own space, are from a quiet /small family then it can be a living hell especially if the others you are sharing with come from a very different upbringing to you

Sorry to say but you are a tad old for this. Sharing is usually for students not young men and women. The likelihood of you sharing with someone your age who is 'Normal' would be rare.
UK