Thai diet pills do have an effect, but the side effects are also great. The specific manifestations are loss of appetite, dizziness, fatigue, insomnia, night sweats and so on. . . My friend bought it. Buy it if you can stand it.
Thailand is not very stable now, so you'd better wait until the situation is stable. The visa is easy to handle. If you know someone locally, you can go with any tour group. You can also go by yourself.