The work of a truck driver is really hard. Staying up late for a long time, getting angry and driving alone have great influence on physical and mental health. Moreover, the freight market is not good in the past two years. Even if you insist on driving, you may face problems such as unstable income and high work intensity. Therefore, to some extent, changing careers is a wise choice.
Although you haven't found a suitable job yet, don't lose heart. You can try to adjust your mentality and actively look for new opportunities. For example, you can consider selling fruit takeout near the university town, or find some other jobs related to truck transportation, such as logistics and warehousing. You can also use your driving skills and experience to find some part-time jobs related to driving, which can not only increase your income, but also ease the economic pressure.
Regarding the feelings of regret and self-blame, I suggest trying to communicate with family and friends and pour out my feelings. They can give you some support and encouragement to help you out of your psychological predicament. At the same time, we should learn to accept the reality and not dwell too much on past decisions. There is no absolute right or wrong in life, only different choices and experiences. I believe that in the future, you will find your own new direction and new life.
I hope you can face your future life positively and find your own happiness and satisfaction.