Listeners: Learn that it's best practice not to give advice unless asked.

Speakers: Prior to sharing feelings, ask whether the person has the capacity to listen, and state that you're not looking for advice, just to vent.

Giving advice can seem like a natural way to provide resolution to someone else's pain, but often does the opposite, as OP says.

However, it can also be a signal that the listener is getting exhausted and can't take on additional care tasks. That's why it's good to ask before sharing and state an intention for what you hope to receive from the interaction.

If you don't want my advice then keep your problems to yourself. I have problems of my own to deal with.

I find it helpful to start with ‘I’m just looking to vent and have some comfort on this’ before I start launching in. I find it works every time.

I know someone just like you OP, or I used to know them anyways.

Instead of being upset with these people, it might help to realize that if you present a problem to someone, as a friend they are going to try to help you solve it.
If when you are "expressing yourself" and you are coming off as upset, frustrated, or angry someone in your world who's your friend, or ever a stranger will try to give you advice if they feel it may help. You do see this right? If spoke to someone about a problem, it's because i'm looking for feedback or a solution.
If you can't see this is the case there is a even bigger problem. Good Luck

Maybe they just want you to shui the hell up so they interrupt you with some half hearted advice. I could be wrong :)

Everyone's a guru these days, it seems. It's an opportunity to talk about yourself in this age of narcissism.

You want the listener to understand where you're coming from or accept your view. But instead they try to fix something about you that isn't broken