I don't make games, but I do compose music. Really your question can apply to anything people create and not just RPG Maker games, which is why I'm responding.
I don't get frustrated, and to me it's kind of silly to do so. You can't make something with the expectation that people should like it or even pay attention to it. Family and friends should be supportive early on when you're trying to become good at something, whether it be art, sports, or making games, so that does suck for you. However, I don't know your age and I mean no disrespect by this, if you're a teenager (or really even someone in their early 20s) most people, even family and friends, are probably rolling their mental eyes at the idea that you're making a game. Because the idea of someone really young like that making a game, no matter how seriously they take it, just seems silly to most people.
Now obviously you've put some effort into what you're doing. You've worked on it for 3 years which at least takes dedication, no matter what your age is. Even if your game sucks, that's a lot of work to put into something. But actually, after typing that I looked at your game's thread and I'm starting to understand. You've already had this problem! You posted once and then nothing for over a month. That's not how you go about doing anything. Again, you can't go into something with the expectation that people should automatically just take an interest or pay attention. Sometimes projects just get overlooked, so be persistent. If no one posts, at least show that you're still working on the project. Give updates! Do something to get the attention and interest of people! Don't make posts complaining that no one is paying attention to you, because that just makes no one want to pay attention to you.
To relate from personal experience, there have been a lot of times where I've written a piece of music and shared it with people to only get little or even no response. Even here, where people are pretty familiar with my music by this point, I sometimes don't get much response to it.* It can be disheartening sometimes to work hard on something and not get back what you expected, or to see it go by without being noticed, but that's just how it goes sometimes. I don't hold it against anyone, because even though I think I'm good at what I do, I can't expect that everyone shares that opinion, and I certainly don't expect people to take time out of their day to listen to my silly music.
*However anytime I directly ask someone to listen to something I've written, they've always gladly done so, I just usually feel weird about doing that
I've been working on a project for, like you, 3 years now. Over 3 years of composing, rewriting, rewriting again, recording, saving money to record more, saving money to purchase instruments and sound libraries, rewriting, rewriting, rewriting, and trying to get as many people as I can to become aware of the project. That's hard to do! But even if only a handful of people end up listening to the finished product, let alone liking it, then that's great! I'm going into this fully expecting a mild response and only a few people that really enjoy it. But perhaps as time goes on more people will become aware and take a listen. At the end, at least I can be proud of what I've done because I did it well.
So, as a sort of tl;dr (though you really should read it all), you need to rethink what you're expecting from people. Give them something that shows what you're working on is worth their time. Make them interested. If you can't do that, or if you still think they should have to pay attention simply because you did something, then making games is probably not for you.