To start, I'm honestly hoping this is just an attention getting troll. Even if that would make the following post irrelevant, at least I would feel better about the world.

First, I will say this right off. If you're still in your teens, you should really not experiment with hypnotherapy, especially for such a serious topic. It can be a good tool for certain behavioral problems, but this is way more critical than that. Honestly, your age is also probably the worst to be doing such modifications. There is a very real chance that you have completely lost your chance to live a normal, balanced life.

What I gathered from the thread is that your change created a temporary illusion of happiness, both for you and for your family. Given your age, it will probably feel like the change worth it for the next two to six years. You are used to support from such a wide group of people, and it certainly would not be enjoyable to have that group reduced. Unfortunately, when you are ready to strike out on your own, and start seeking a relationship this will really come back to hunt you. Given that you are at least midway, and most likely past the midway point of puberty, your mind had already mostly adapted to a homosexual lifestyle. You're not likely going to be able to change a large part of that. In the best scenario, you may be bi, or be able to resume where you stopped, however, you may also not get much enjoyment from sex at all, nor be able to develop an emotional attraction to either gender; given that you say you're currently neither gay nor straight, the latter one seems to be quite probably.

Unfortunately, just like now, this sort of lifestyle adopted later will most likely not endear your family towards you at all, so effectively your actions may have just delayed the matter by half a decade. For others in this sort of situation: certainly, this will get you through university with your parent's support, but that is really not as big a problem as it seems to you at the moment. Once you are in the adult world, playing by the rather darwinian rules of survival, you will be met with problems that are significantly more severe and pressing. At this age there are still loans and grants to help you, and plenty of places to receive services. What more, I imagine at least a few of your friends will be good enough not to turn on you for such a revelation, so it would show you who likes you more than some admittedly entertaining fairy tale. Who knows, perhaps after some time on your own your parents will be able to realize that their beliefs are not going to survive your generation.

Right now, since you already went through the process, it would be pointless to burn any bridges with you parents. The best thing you could do is take up meditation, and have a few Wikipedia journeys from Interpersonal Attractions, Puberty, and Homosexuality. Also, try to understand what drives your parents so much, so you can use that to influence them later on. For instance, are they afraid of hell? Then build your argument by referring to the religions that accept homosexuality, and providing examples of how they are being hypocritical of the situation from the texts they believe in.

Hopefully that will let you mitigate some of the long term damage, and put you on the right track towards a more balanced relationship with your family, community, and the rest of the world.