If you fail to achieve freedom in this life, when do you expect to achieve it? While still alive, you should be tireless in practicing contemplation. The practice consists of abandonments.
"The abandonment of what?" you may ask.
You should abandon all the workings of your relative consciousness, which you have been cherishing since eternity; retire within your inner being and see the reason of it.
As your self-reflection grows deeper and deeper, the moment will surely come upon you when the spiritual flower will suddenly burst into bloom, illuminating the entire universe.