No semi-colon! A semi-colon acts as a period, separating what could be written as two separate, complete sentences.
Use a comma.
Too many words in what follows, however. It can be condensed:
..., proving to myself and those around me that I am determined not only to be successful but also to leave this world.....
I "cleaned up" the parallel structure for you. I also "unsplit" your infinitive.