Understandably the job is important so that you can save money for the future (i.e. home = a one bedroom apartment!). It's not a strange dream at all; when I had noisy housemates I really wanted to move out and live in a single bedroom apartment, but because I was studying full time (no part time work) and single unit apartments around my area were really expensive, those plans had to be shelved for the time being. The student accommodation I lived in was close to pubs/food outlets so it was pretty noisy during Fri – Sun nights!
Hopefully like Inky has mentioned you'll get a housemate who shares your qualities so shared living would be smooth, and while you'll be looking into some psychotherapy like Anita mentioned, Youtube has a great selection of meditational music/ spiritual chanting (whichever you're more comfortable with) to help with calming you down.
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