2. Learn a skill well. For example, if you want to engage in JAVA development, you must first learn JAVA programming, common frameworks and so on. If you want to engage in products, you must learn to draw axis diagrams, flow charts and write demand documents. You must be prepared and try not to let the interviewer think that you are a blank sheet of paper.
3. Know how to optimize your resume and refer to the online resume tutorial.
The next best thing is to find some jobs with low threshold, at least you will have an income. You can continue to look for a job while working, unless your current job has certain development prospects. If not, choose other jobs with development potential.