Many of us are very much afraid of losing our jobs, but firing is actually fixable. If you are the main earner in the family, then it will be especially unpleasant and even scary for you if you have to leave your position for some reason.
And if an unpaid loan or some other debts "hangs" on you, then the situation is aggravated. In this situation, the main thing is to be able to overcome the fear of losing your job.
If the leaders of your company are looking for ways to reduce costs, and the company itself temporarily makes very little profit, then the risk of layoffs increases. The fact is that the bosses have nothing to save on anymore. The risk group includes people who have disagreements with management or influential colleagues, as well as employees who often make mistakes at work, are late, skip, and so on.
If your situation does not fit the above categories, then go to work with pleasure - your fear of a possible dismissal is not justified and is not confirmed by anything. Consult a psychologist in order to competently work on yourself, more precisely, on the level of anxiety, which can negatively affect self-esteem. Overly anxious people are afraid of mistakes, so they double-check the work done several times, which takes a lot of time. As a result, the work itself becomes less productive.
Remember that competent employees are only fired in exceptional cases. Become a real professional in your field. Read business literature for material on working in your industry. If the firm as a whole is not doing well, then don't cling to ghostly temporary stability. Prepare yourself internally for another job, maybe even in a different field of activity. So you can clearly realize your own willingness to start everything from scratch at any time. And when you realize this, then the fear of a possible dismissal will immediately let you go …