not doing vs doing

there are things on my to do list that have been there for months. a lot of these things are easy and could be done and crossed off. i've been trying to figure out why i do this and came up with this:

i need to stop thinking so much BEFORE i do something and count on my reflection AFTER i do it to make a change for the next time.

i tend to 'overthink' things i want to do and as a result they never get done. i need to remember that as long as i take the time to reflect, i will be okay.