I just browsed through the Berzin archives and the amount of information there is almost overwhelming! Having read through a couple of articles on Lamrim meditation, would the following approach be okay?
1. Half an hour of breathing meditation to calm my mind.
2. Reading a different chapter from Jewel Ornament Of Liberation every day.
3. Contemplating above chapter.
4. Focusing on the objects generated by above contemplation.
If you find that doing those 4 steps produces clear progress and improvement each time
, then it's worth sticking with it.
I wouldn't personally be daunted by the size of Berzin's stuff on Lam Rim. Lam Rim really doesn't need to be sped through, it's really worth taking the time to internalise each aspect. Everyone goes back to study these over and over again, it's not something you discard once you finish. But I personally spend a few months going from start to finish with these systems.
A few other queries, I have been doing at least an hour of breathing meditation these days, does this really fit into the Lamrim framework?
Lam Rim does not posit a path different from that of Buddhism as a whole. The Buddha taught mindfulness of breathing because it is useful and can lead you all the way to nirvana. The way it works is always the same: practice all aspects of the path, abandon the unwholesome, practice what is wholesome, cut away illusions.
I see concentration and wisdom are steps on the path, do you meditate on the importance of developing concentration and wisdom or do you meditate to develop concentration and wisdom? If it is the former, then that means that other practices are required as well right?
If you want to internalise the steps as you read Gampopa, then you can meditate on their importance. But meditation does develop concentration and wisdom. Gampopa explains this very well in the text, I would suggest just reading what he writes because you will find it answers a lot of the questions you have.
Also, are there any other practices that someone can do without the help of a teacher? I focused on Lamrim because I read in several places that it is a preparatory practice which can be done without a transmission.
You can practice the whole path right now, right there, right where you are!