I stumbled across bigsideproject.com when I was searching desperately for some help in overcoming my chronic procrastination issues. The website provides a variety of blogs which goes through the science and understanding behind why it happens, strategies for how to stop procrastinating, and motivational quotes to keep you going and remembering why you do it every single day.
I found the website to be so helpful in understanding my own procrastination issues and developing strategies to overcome them, and I'm really grateful for the resources.