My family loves gaslighting me and pissing me off. What do I do?

BullShark
This is unlike any of the questions I normally post, so bear with me here as it might turn into an emotional rollercoaster.

Long story short, I've been feeling very aggravated lately. I can't seem to find a job, my supposed "friends" keep leaving and finding other people with whom they'd rather spend time with more, most people my age are either getting in serious relationships, getting engaged, or even tying the knot. While I'm here, 23 years old in my prime, still stuck in a dry spell for more than three years now, nor any success with my career.

The world seems to be moving forwards with everyone moving along with it, while I seem to be stuck where I am with no real changes going on for me. In fact, things seem to be getting even worse instead. I feel like a failure or a person. A failure of a man. Furthermore, instead of understanding my situation or sympathizing with me, my family instead loves to gaslight me or deliberately say things to trigger me so that they have a reason to put me down and tell others what sort of a failure I am and how I'm "lashing out at them for my own incompetence".

The worst out of them all is my little brother of six years. For him, everything is a bloody joke and my parents seem to agree as well, because whatever he says or does is pushed under the rug and he's never held responsible for whatever he does. I know that in the long run, this behavior is only going to set him down a dark path, but my parents seem to disagree. He knows my insecurities and loves to poke fun at them in a derogatory manner or when we have an argument and he can't come up with anything good so he starts attacking me personally.

Like just this evening, he was angry at me for something and said to me how it's no wonder why people replace me with someone better because I suck as a human being, or how he would rather have a brother who isn't such a massive loser like I am. I'm running out of words so, yeah. I'll leave it here. Let me know your thoughts.
My family loves gaslighting me and pissing me off. What do I do?
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