There are multiple factors involved here to work towards your goal. Everyone is going to say bankroll management which is obvious yet always missed. I am a firm believer of 'begin with the end in mind' and even take that to the point of a sort of reverse engineering of a plan.

You need to figure out what type of games you are going to play, just MTT's or MTT's and SNG's or Ring, MTT's, SNG's, or a combo of any of those. From that decision and for any and all decisions for change along the lines, you need to make sure you understand the shifts in your playing style that have to happen in order to be profitable in each of those genres. And to go a little further, you need to understand the shifts needed from level to level within the same genre as you progress.

As you do these things, they should not just be mental thoughts, they should be written out in an almost business plan format. Does not have to be formal or anything but at least understandable enough that it does a few things. First and foremost it reinforces your ideas and concepts in your mind so that as situations arise, you have a reference both mental and physical. Second, you can share these thoughts with someone such as a mentor who is doing what you want to do or at least does well in an area you are trying to be successful in your pursuit. It also gives you focal points for your game that are far better than just reviewing hand history.

This is just a start to things, if you want more info I will be happy to continue. But right now I just had a tourney start so I am going to cut it short(way short really).