I'm not laughing.
A poem which many people in different situations can relate to, one that can remind a person that they're not alone. Saying that I know how you feel 100% and understand what you're going through would just be another joke to add to the poem, because the chances of someone having gone through the same life experiences as you are unthinkable.
But know that there are people who can and already have supported you whenever they can, and that they will continue to do so.
And what's wrong with becoming too emotional, or feeling too much when writing these? The feeling can be used to motivate yourself further and persevere as each line fortifies your writing skills, allowing you to improve and progress further, while at the same time releasing you of the stress of wanting to let your heart out to others who will listen, for you know that we will read and listen.
All in all, well done, and keep going!
Every lead-in to various types of "jokes" is a good one.
Each captures the reader to complete the idea.
And most readers will identify with at least one "joke." I know I did.
PS. My daughter calls "rants" a different name. She's "venting" when she lets go on all that troubles her. Venting is good.
People will always tell you you don't have the right to be sad... even when you have a mental illness like me...
There will always be someone out there with a more tragic past even when yours and when mine are horrible. And until you have the saddest story, no one feels sympathy. They tell you you should be lucky your experiences weren't worse. They tell you you need to get over it because it's not as bad as ______ or as bad as _______ but that's bullshit and I hate it. I'm sorry you have to deal with those people too. Don't listen. You have the right to be sad just like anybody else.
Rant in your poetry more often. I like it.