SUMMARY - TIPS FOR PITCH PROBLEMS.

To summarize, here are 6 big tips to help increase your pitch accuracy:

POSTURE : stand or sit tall and confidently, head balanced on tailbone.
WARM UP : your voice correctly throughout your whole range, mixing it.
LISTEN : to the music, especially acoustic instruments such as piano and guitar.
DON'T LISTEN : to swimmy instruments or bass to get your pitch center.
AIM : at the pitch intend to hit a specific note.
CONFIDENCE : expect to hit it!
PRACTICE PERFECTLY : don't allow yourself to be content with pitchiness.
Practice hitting the note you're aiming for, instead of allowing yourself to sing "pitchy".
You'll train your ear to be much more accurate when you practice accuracy.

Let me know this works for you, and anything else you'd like to add.