I understand that you might be scared to tell your parents, but I suspect they might have an inkling something is not quite right and waiting for you to talk to them? Or is it a case that you know they do not believe in mental illnesses?
Ultimately, whether you try to go it alone and do it yourself, or seek help from a professional is your choice. And if you want to do it yourself, you might want to find the threads on the forum for grounding and mindfulness.
One book that I also think is worth reading is called "the happiness trap". It was recommended to me by my psych, and you should be able to find a copy of it at your library. You can also download app called the act companion that comes with the book to help you with mindfulness.
If nothing else, there are two things to remember when it comes to distraction and coping tools...
(1) the first is patience. Give each "tool" a chance to work before dismissing. (I have an app called virtual hope box with a word search puzzle. Doing it once, it did nothing for me. I had to do it 5 times straight after each other, before I noticed any change in me.)
(2) a tool that works for one person might not work for you and vice versa. If one tool does not work, move onto the next one until you find one or some that work for you.
Lastly, if you do a meditation, and your mind wanders, that is also OK. Just bring your focus back on whatever the meditation is asking. These things all take time and practice. You will get there, and remember that you are not alone.
But if at any point you feel that you are not coping then getting help from a professional is OK. You might also find writing your thoughts here helpful. And then at some point, you might find the courage (?) to tell your parents? And I am sure they do care about how you feel?
Peace and comforting thoughts,