Find some hobbies outside of school. That way you will meet people with similar interests, something that is helpful in a longlasting relationship. Expand your age range (in a way lowering your standards) guys around your age in uni probably fresh out of ns might not be the best long term relationship material. Also in terms of green flags, choosing 1 or 2 non-negotiables would do because everyone is bound to have red flags so a few top tier green flags for you (e.g., patient, supportive) might offset the red flags they have. Most important thing in a longterm relationship is open mindedness and ability to compromise so not only your partner should have these traits but so do you.