Do you mean bot clicks?
- Monitor your traffic and identify any invalid sources
- Make sure your ad placements are in alignment with AdSense guidelines
- Use an AdSense protection WordPress plugin to block invalid traffic and clicks
You can not do much. Google does as much as they can to prevent fraud like this.
You can also code something in PHP + javascript to check the clicks of ip xxx.xxx.xxx and forbid qucik clicks. If you know how to code: Try to implement all those spamhouses and report the ip on those spam colle collecting services.
btw you know what html is?
There is not much you can do. It's better to switch to Wordpress if you can or rely on Adsense to deal with it.
https://infotechapb.com/stop-invalid-click-protector-script-for-blogger/

You should keep an eye on your regular traffic. If you find any drastic changes in clicks or revenue, then remove the script.I found something on internet when I looking for a solution for this.
That’s not the point. It’s to prevent the regular site user from clicking multiple times by accident, not from a person purposely click bombing you. For the regular user, this will work just fine. But honestly it’s not really that useful, what usually brings trouble is accidental clicks, and it’s just one click, so this plug-in won’t do anything. If you are trying to protect yourself from bots / vpn/proxy traffic, then start by adding your site to cloudflare, you block some high risk countries where’s there’s a lot of bad bots: Russia, China and Some Other countries (of course, adjust accordingly to your audience). If you have the budget, deploy a protection like IPQUALITYSCORE to filter ips. Still, with all that in place, Adsense might still deduct you a lot, especially if it thinks users are clicking by accident .That script won't protect you.
It's just saving a cookie, and we all know how much a cookie helps.
But anyway, however you do it, I can tell you from experience: never trust the client.
There will always be a way to break your stuff. I would rather not waste time on that and just keep grinding.