Everytime when i wanna add a picture to a post it says "the text is too long. Please shortened it to 100000 characters"

No, i did't know that website. When i upload it there, how can i do, that you dont have to click on a link, but you can see it in the post?

ok, time to put all of these half answers together:

first you need to upload it to an image sharing site, imageshack, photobucket and imgur are the most popular, but imgur is the best in my opinion.

doing so if fairly self explanitory, just go to imgur.com, click the "computer" button under the upload images text on the right of the site.

after you do that, and find the image you want to upload from your computer, double click it and it will upload, and bring you to a screen with a bunch of links on the right, find the one with tags around them, and copy it, then you can paste it in any post or private message and it'll appear like this:

ok bye

Okay, thank you guys