Set Small Achievable Goals
Like I mentioned above, a lot of the goals I set out for myself were unachievable because they were very, very broad.
Ultimately, this would scare me before I even started a task and limit my capabilities to a large degree. Now, when I plan a task or a goal, I try and keep it specific, short, and achievable. For example, a task would look something like this:

“I have to finish reading this whole book before the month ends”
Now, I would frame it something like this:
“I will read 10 pages of this book every night before bed“