Googles Ad revenue from US alone could be 100B. If there are 100M converting users, that's 1000$ per user. 200$ per month cannot get you got. Think more like 100$ per month
GPT3 costs something like 5 cents a query. At 20 dollars a month, that would be 400 queries a month. I don't know about you but I'm pretty sure I do at least an order of magnitude more Google searches than that.