1.
I know you have said that you have tried societies, but would you give it another go? I think that societies are great ways of making friends as you meet such a variety of people here and there will be lots of people to talk to and make friends with. Have a look and see if your Uni puts any on that you may want to join.
1.
You could also look and see if your course has a society or if there is a general academic society for courses similar to you and see if you would like to join this. This may be a good way of meeting some new people on your course too.
1.
See if your student union puts any events on. Quite often the SU will put events on throughout the year so that students can meet people and also just do something fun so have a look if yours does this.
1.
Have a look on social media and see if you can meet anyone this way. Quite often there will be groups on social media such as Facebook where you can meet people at your uni/on your course so see if you can do this!
1.
Look at getting a part time job (if you don't have one already). If your uni has any campus jobs available see if there are any that you could get as you can often meet people here too. I know it can be stressful in final year but see if there are any which are quite flexible!