I ask for serious advice about this matter

[Net Warrior]

Can you take a 6 mo leave of absence from your job? If so, do it, borrow against the equity in your house to pay expenses for 6 months and enroll in college. If you're going out of town maybe you could rent out your house for 6 months. See if you can runs As and Bs in school. If so, stay with it. You can always get a student loan and work part time while completing school. You'll be older than most of your fellow students so you have to see how that effects your social life. After 6 months, then decide if quitting your job and selling your house to pay expenses is best.

Sounds like quite an adventure. Good luck.