Do not go after the past,
Do not lose yourself in the future.
For the past no longer exists,
And the future is not yet here.
By looking deeply at things just as they are,
In this moment, here and now,
There are numberless methods to practice meditation have been designed so far, you can read or hear or listen to them and make your own choice whichever suite you best, then go with it for a while and see how it could help you. Do not just research them, praise this or criticize that. This won't help at all. And meditation is just meditation and nothing more than itself.