1, spend some time (generally speaking, you can get started in a few months) to learn the general computing logic of four pillars and eight characters by yourself, and you can probably know whether your birthday is good or bad;
2. Consult the professional master system once for reference;
3. Summarize your luck in study, work, relatives, health, feelings, wealth and other aspects through your own luck history of more than 20 years. Use practice to test your own way to judge yourself. (Of course, if the past is not good, the probability of a good future will be great. After all, thirty years in Hedong, thirty years in Hexi, the wind and water turn. )
Personal advice, for reference only.