Do I need to book a free air ticket hotel in Thailand in advance?

Traveling to Thailand is quite safe, and the public security is quite good. There are a lot of foreign tourists ~ I just came back with my husband and Zhongxin's group, and I had a good time in Bangkok ~ I don't need to book air tickets and hotels too early to travel to Thailand, but every year 12 to March, and late July to August are the peak seasons for Thailand tourism, and hotels are very scarce, so I need to book rooms in advance. And at this time, the accommodation fee will be subject to 7% tax and 10% service charge, and there will be a 20%-30% discount in the off-season. On the whole, staying in Thailand is quite cheap. I checked online before, and the high-end hotels in Bangkok are only 4500 a night, and the cheap ones are around 100 ~