This is my exact situation. I'm going to be 30 in three months and I feel like I am pretty good at everything but a master of nothing. I don't have a real passion and don't know how to find it. I even did some personality tests to find what career choices I would be good for. Well the results were literally even across the board with sometimes having maybe 1 section lower than the rest that I should avoid.
Anyway I decided after taking a 2 year hiatus from university, get my shit together and go back to finish my bachelor. I learned there are situations in life that are out of your control but instead of giving up, you should seriously evaluate the situation, costs and benefits of your options, and come to an informed decision to work your way around the challenges that pop up.
What I would tell myself from 10 years ago?
1. Do not half ass anything in life, from school to your choice in friends.
2. Make small goals and when you achieve them make greater goals moving forward toward your grand goal.
3. There will be setbacks you did not account for in many aspects of your life. Do not let them ultimately defeat you. You might be a victim in a situation but do not slave yourself to a victim mindset even in the slightest. Evaluate the situation, deal appropriately with the situation as much as possible, and come to an informed decision to improve your situation and move on.
4. Take the time off needed to grieve losses (deaths, friendships, betrayals etc...). Seek help if you feel you are not improving.
5. As tempting as it is, a nihilistic view of life is detrimental to your state of being and will ultimately destroy you from the inside out.
6. Friends are important but there will be times where you actually do have to cut ties with some friends when they are holding you down. Sometimes your friendships are based more on convenience than they are on an actual friendly relationship. Evaluate your own side of your friendships so that you are also not using people just for your own needs. You want true friendships. If people drop you, and you already reasonably tried to save the friendship, then let it go. You cannot change people, you can only change yourself.
7. When you meet a decent girl in university, put a bit more effort into that relationship, don't just brush them off because it is difficult to find other girls that you will appreciate conversations with in the same way.
8. Don't just get in shape, stay in shape. Keep your routine, and set greater goals, as I said in 2, because you can lose your gains really fast haha.
9. We take many things for granted but we also sometimes become disillusioned with things we grew up thinking or taught were near perfect such as our education and health care systems as examples. Do not let this disillusion deter you from getting what you need when many obstacles that you feel should never have been there are put in front of you.
10. Self reflection is so important. Sometimes you have to evaluate yourself to see how the world sees you so that you do not unintentionally misrepresent yourself. This does not mean to put value on yourself based on what others think, but to improve your own self image and your representation of that image. Sometimes by viewing ourselves with an outside look, we see our own flaws that we ignored or missed unintentionally, and can work on changing ourselves for the better.
11. Life is not fair and it never will be. Never expect things to be done for you. Take advantage of the opportunities that come by and honestly do the best you can with them. Incorporate gratitude into your life.