James: Don't let anyone tell you how long you're supposed to meditate and/or chant mantras, etc. There is no "one size fits all" in Buddhism. Most days I meditate for 20 minutes because that feels right for me. However, other days I go for 10-15 minutes, it just depends on how I feel and the circumstances that I can not deny in that present moment.
In many religions this life is it and if you don't get it "right" (whatever the hell that means) than you will suffer for making the littlest mistake forever and ever. To me that isn't motivation but unnecessary stress that creates more suffering. It is easy to do things for the wrong intention when one follows such a path because the intention is often out of fear whereas in Buddhism there is no one waiting to punish us. This takes the pressure off so that we can concentrate on the issues that our preventing our peace. Rather than forcing ourselves to do something without understanding it first simply because we want to please someone else. Contrary to what many will say, this is not the only path to follow. There are many combinations to unlock the puzzle of samsara.
In Buddhism, we create our own suffering and therefore have control over how deeply we suffer. There is no "Satan" out there to tempt us and mislead us down the path of spiritual destruction. We are the ones in charge of whether we experience peace and freedom or suffering and fear. We are in charge of our own destiny rather than feeling at the mercy of two "Gods" fighting over the dominion over our "souls." Such a situation can easily lead one to feel fated to the outcome of things that are beyond our control which leads to deep despair and often times bitter resentment.
The beauty of Buddhism is that we can go at our own pace and if we need some more time after this life then it is granted to us. There is no need to rush because everyone will achieve liberation at some point along this beautiful journey. In Buddhism we all have a common foundation but due to our different karma, no one path is the same as the next. I am not saying that those different paths are wrong but rather pointing out that there are many ways to find one's peace with all things. Listen to your heart and find what works best for you. So take a deep breath, smell the flowers and smile--for you are a Buddha to be.
~Peace to all beings~