Your account was suspended because you hit the MySQL Usage Limits
My question is, what is the exact limit of posting on wordpress. I think i posted 15-20 posts without stopping just before i got suspended. What do i have to do so my website wont get suspended again? Also, i can’t purchase the premium version for now even if i want
Usually, high MySQL usage is caused by poorly coded plugins or themes generating bad queries. The amount of content on your site generally shouldn’t be an issue.
Sorry, but that will never happen. Whether you like it or not, bots are going to visit your site. And every logged in user will be running more and more SQL tasks. And many bots will consistently reload pages, using even more data.
I would delete the caching plugin and use Cloudflare instead. And turn on bot fight mode with Cloudflare as well.