I writes some of my own material, but I need help, as a lot of us do.

So far I wrote about 5 full songs, 3-4 I would call good. Recently, I had a feeling I needed to let my feelings out, and thus I turned to one of my favorite genres: the blues.
How do I truly let my feelings flow into my music and lyrics though, because thats when I am the best in playing/writing. How do i really dig deep and get those feelings to surface to do what I love?

Most of the time when i write I just let the words come. IF you try to force yourself then it will sound forced.