Hey cassiopeia, I can really relate to your post. I practiced EFT and Sedona for more than two years... With very little results. While I am grateful for the lessons I got from these methods, and the ability to notice my emotions that developed from that practice, today I understand things better and my life is changing because of that.

The problem with EFT and Sedona, and many other methods, is that they are focused on "eliminating the negative". I found it very hard to really let go without focusing on the positive. When you try to eliminate the negative, you automatically focus on it. It is very tricky and I know of many people who fall into that, including myself in the past.

The keys to understand in order to really improve your vibration and release resistance, in my opinion, are :

1. Like I said, focus on the positive, not the negative. Even Lester Levensons, the creator of Sedona method, said that holding the positive in mind is a better method than eliminating the negativity.
2. The realization that your beliefs are thoughts you keep thinking. This is so important, that Abraham repeats this all the time. Beliefs are simply thinking patterns. When you start deliberately looking for better feeling thoughts, you change the pattern and the "belief" is gone - since you are no longer giving it "air time". It is not something stored in your mind, that you must search and destroy - it is just a thought we must stop giving attention to, and we do that by reaching for a better feeling thought, which brings us to the next key :
3. Doing the work gradually and based on your logic/belief system. For a person that feels desperate about money, reading a mantra of "I am rich" is ineffective - he is nowhere near the vibration of that statement and can't even understand it from there. That is why we look for every thought that offers even a slight improvement. You focus on a very general statement (usually negative - for example - "there are people in the world who managed to turn their financial situation around, so I have some chance of doing it" - this feels probably a bit better than "I will never have enough money", but also not reaching too far), a one that makes sense, focus on it for 17 seconds and let LOA match that thought. This is called a focus wheel. And slowly, with statements that you already agree on, you move upward until you are in the vortex, and can focus on the subject specifically.

There is a lot of information about focus wheels on youtube, I suggest you have a look. It is absolutely excellent.

Also I suggest you let go of your goals and make your only intention a one of feeling positive about the subject automatically - and just enjoy the feeling until you get there.