What are some ways to help students who were enrolled in college to get back into college?

Me along with a lot of other people have enrolled into a college then have dropped out due to a variety of reasons and obstacles. The things that I can come up with including mine are: lack of studying, difficulty learning how to learn, low self-confidence, bad time management, higher priority towards social life, not using resources, not connecting with professors, personal struggles, family struggles, health issues... Are there other things that anyone can come up with and also, do you guys have advice to give to overcome these obstacles?