How can I prevent trolls from the internet!!!

Hello! You may have read my last blog "How can I stop my procrastination habits before going to college!!!" If not, you can read it here. Now, I assume you are here to stop something else, internet trolls. Well, technically there is no ways to prevent internet trolls, but there are ways to avoid internet trolls. The career path I am trying to pursue right now, is computer science. "Why would he bring that up?" you ask. The reason behind this, is because most of the time, I would spend hours on end working on projects on the internet to help learn new techniques, meaning I would always run into internet trolls, people who would make indecent comments on forum posts or blogs post giving irrelevant opinions, only to hurt the author. Now the technique I used to avoid these trolls is very simple, just ignore them. Do not let the hate reach you, if you're the author just skip right past it, don't read the comment, and if you manage to do, then don't take it personally. I've created many posts on forums asking for help on coding, but at times I would receive tons of hate such as "Learn it yourself, kid!","No one is going to help you","Watch this video for help (Link to very inappropriate sites)", and many more...But there is always gonna be that one person that's gonna supports you, and that one comment is worth more than all the other negative comments.