Search your heart and decide what it is that you REALLY want to do. After that, set your priorities and then systematically achieve each one. Life is a journey, not a race!
Oh and btw, if at all possible, try not live life by scripts; meaning that society or the culture says that at a certain age you should have completed thus and such. There are some things that should be captured by each of us by a certain age, however, in terms of marriage, academic achievements and stuff like that is as different for each of us just as each snowflake is different.
Take your time!
atp