First of all as a church drummer remember that heart is more important than skill. Focus on what you play drums for and let that fuel your inspiration. Regarding skill, ikaw lang ang makakapag sabi kung hanggang saan ka gagaling, sarili mo lang ang kalaban mo at sarili mo lang din ang kakampi mo.
Age is not a factor that restricts you from learning, truth be told 22 is still a very young age. I say go for it!