Re: so he decided to go back to University to study dentistry.
Please see my amendments to your post above. Check on your use of "in case" and "just" in the first sentence, and "while" and "still" in the second sentence. It's good that you try to use these phrases but, in this particular case, you did not use them correctly.
Originally Posted by Odessa Dawn
I have left "proper name" but remember that you will hear/see "proper noun".
Remember - correct capitalisation, punctuation and spacing make posts much easier to read.