It's great that you're taking steps to get out there and meet new people, such as meeting up with a uni friend and trying to go out more often. Everyone's path in life is unique, and there's no one "right" way to live. You may feel like you're behind in some areas, but it's never too late to make changes and pursue your goals. Focus on the positive steps you're taking and celebrate your successes along the way.

Have you tried asking your GP about getting something like CBT for social anxiety?