First … thanks be to God that you are considering your pride and that it could be a problem. That is an awesome first step.
Agree with the Litany of Humility suggestion above. That prayer brings me to my knees.
I’ve been focusing on pride for the last couple of years. What works the best for me is to continually ask God to take my pride from me, and to show me my sins. Also spend some time meditating on pride and asking God to show you how deep it goes in your life. In my case, the answer I get is that it runs deep and is intertwined in nearly everything I do.
At that point, the only thing to do is look up at God and ask for help, because only he can unravel your pride. Don’t be afraid to pray for humilty, but know that the only way to truly gain humility is to be humiliated. If you truly wish to combat pride in your life, I feel this is a necessary step. This is a tough step but don’t be afraid.
Back to the first point - thanks be to God that you recognize this as an issue. This is IMO a huge step in spiritual development.