Every time i met a chioce, i would be trapped into it and effected by subtle factors. Now i find i dont like what i chose. i know regret isnt helpful but i cant help myself to think about it. whereyou want to go is much important than your hard work. i work hard, but i always step into chioce chaos.
First you should identify whether you can give up this choice and make another one.
If you can, then do it.
If you cannot, just your hard to do it, because you have the responsibility to finish it well.
Be a resposible person, whatever for your choice or yourself.