Preliminary Exercise: Create a Psychic Journal
If you haven't done so already, create a psychic journal in order to monitor your progress. The importance of this is that you are able to make objective decisions about whether you have made improvements, are able to find the source of problems when they arise and can look at it to find out which methods worked and which did not (especially a long time ago). I am not going to elaborate heavily on this topic, since I have done so in many other locations, but if you want to read more about how to make one of these, you can do so here.
Absolutely do not proceed until this is done.