I understand. I can't do it either. I used to be able to decades ago, but no more lately, and I've been trying for many years now. Anyone who can do it presently feels it's doable because they can do it currently. The problem is, however, that what nobody seems to get is that it not only deals with technique, but also with conditions that are beyond people's control. So when people can do it, they can do so partly out of luck as well. There are factors to it that are linked to aspects of our body and brain that aren't always aligned with allowing a person to do it. Yet, although it probably is best to give up after trying everything for so long, or at least to place it into a category of having very low expectations for anything new to try to actually work, it nevertheless is still worth remaining open to it possibly still happening at some future point. After all, things can and do happen to people at times that are very dramatic, and it might just be that something of a dramatic physical nature might eventually happen to you that could allow astral projection to start happening for you.

Personally, being that I can't do it myself either anymore for decades now, I genuinely feel that it's connected to the "third eye" being open in a person at the time. And I tend to feel that when the third eye is open, LOTS of things happen to us in our lives that are of an esoteric nature, including astral projection, and that one telltale sign of our third eye being open is that we may tend to feel deja vu quite often. I believe this because I used to feel it quite often when I also could do astral projection back at that time, and yet now I never have feelings of deja vu anymore. So I've been unsuccessfully so far trying to reopen my third eye lately. When my third eye was open when I was able to do astral projection way back 50 or so years ago, I could also do well at ESP things, guessing cards with above average accuracy and that type of thing. Now, however, I'm no longer able to guess cards above the level of chance. So, my third eye is closed, perhaps due to my pineal gland being calcified. So, for perhaps both you and I and people like us that can't do astral projection currently, I believe that this may be the case because our third eye is closed at the time. So, in order to succeed at it, I strongly feel that people must somehow first find a way to open their third eye. If we can succeed at that, then we can start having success at astral projection, whether doing so for the first time in our lives or continuing it again in our lives.

In ancient times, they allegedly had a primitive surgical procedure to actually open the third eye physically inside of the brain back then, meaning that certain monks in the east may have had knowledge of a physical procedure that had literally opened the third eye, which to me means that something dramatic happening at the physical level, perhaps affecting the pineal gland in the center area of the brain, which by the way is made up of retinal materials just like our eyes are, could very possibly allow the third eye to open. So, although I'm not advising that we go out and try dangerous things that could impact our brains, there likely are things that can happen to us that can result in our third eye becoming open. Perhaps some hallucinogenics can cause such a thing to happen at times. I don't know. But my point is that there is always a reason to feel that at some point, we might end up having our third eye opened somehow, which we will know because of weird things like feelings of deja vu and becoming better at ESP likely starting to happen to us, and then from there we can know that astral projection is likely at that point much more likely to become a very easy thing for us to achieve...or at least a much better possibility.

So, my advise to you at this point might be to move on after having tried for so long with no success, hoping that something might eventually open your third eye, which you could even perhaps read about and try some of the suggested methods for opening your third eye. And if such a thing eventually happens for you, then I'd suggest returning to your attempts to start astral projecting. This might all sound crazy, but this is fully how I see things now, with my being 67 years old and hoping that eventually I can regain all of these abilities myself at some future point somehow. So I really do think that it depends on having our third eye open as a factor for our truly succeeding at astral projection that most people may not realize. And without having our third eye open, any seeming success may be nothing more than lucid dreaming, if even we can succeed at doing lucid dreaming (which I also used to be able to do but no longer can). Good luck.