Rejecting hackers

I've been plagued by hackers since 2015

 

This is seriously affecting my productivity, as my laptop is now dead slow

 

Doing an online correspondence course or running a business would be a nightmare, as I spend most of each day taking corrective action to mend any damage done to my computer and rejecting the intruders(TCPVIEW).

 

I thought of an obvious way of rejecting hackers in a firewall would be to reject anyone that uses VPN with just a few exceptions

 

Any suggestions would be appreciated

 

Many thanks - pjb