Persevere, peace will come

You are saying that you have to make a great effort to experience even a little peace. Don't worry about this. Your effort will pay off sooner or later. If you persevere the peace and bliss will come unasked.

If you give up your attachment to all thoughts, except for the thought of the Self, you will find yourself being pulled automatically into the peace of the Self.

If you practice intensively and correctly you will find that the experience of this peace is addictive. When this happens you will lose interest in everything except the Self.