How much is the transit tour in Thailand, Malaysia and Singapore? Participating groups

At present, the market price of group tour in Xinmatai is around 4K~7K. The difference is the shopping time, which is almost getting on the bus to sleep, getting off the bus to shop and urinating. A country flies back and forth for two or three days, at least three days, usually around 10 days. I don't understand why I want to join a group to go to Southeast Asia now. I plan a route by myself, spend less and have fun. Joining a group is to send you abroad to be slaughtered.