Instead of guessing at all these things, what do you know? Think about what you know for sure. You like being happy, feeling peaceful, feeling love, feeling contentment and satisfaction. The psychologists have discovered the flow experience where people feel so good that time stops. Imagine that.
Also you know you do not like not (double negative) feeling love like when someone you loves die. You do not like feeling rejected by someone you love. You do not like feeling scared, anxious or panicked. Isn't all this true? You do not like feeling depressed.
How many people kill themselves because they are too happy? So maybe you are getting a clue that the purpose of life is to be as happy as possible (also as much love, contentment and inner peace as possble). Isn't that what you are pursuing in life or do you look for misery and suffering? If you made up this purpose then why does every person pursue the same thing. I see on forums all the time that people want to kill themselves since they feel depressed.