<human>: Could you distill the essence of the text into 1-3 sentences?

Throwaway here. 

So I basically switched programs in college and ended up in arts. After a stressful 3 semesters of wondering what the hell I'm doing with my life I switched to electrical engineering and I HATE it. I am almost 22 years old (I look young though) and I feel like I wasted my potential. I'm doing very well in a top tier university, but I still don't find programming or electrical engineering interesting at all. 

Then on the other hand I find bioengineering and biotechnology EXTREMELY interesting, but in order to do anything meaningful with it I need a PhD. I'm not sure if I'm so passionate for it to stay and do a PhD. What if this is a mistake as well ? IF I regret it like I regretted arts, I will be left with no job prospects and another 2-3 wasted years.
<bot>: What should I honestly do reddit? Finish my engineering program even though I dislike my courses so far and get a decent paying job by 25, or switch to something related to biotechnology and get a job at 30?