God gives us a strong yet vital admonition in scripture. This is like a regular oil change for attitude, motive and heart - Your First Love.
God will never burn you out. The enemy will try to draw us away from the rest of the Lord, but there are steps we can take to stay in that place of rest - How To Avoid Spiritual Burnout.
After you are born again and you have the Holy Spirit living inside, you discover that there are still some problems with your mind, your soul. The Word of God has the ability to save, preserve, stabilize and protect your soul - Getting Control Of Your Emotions.
A big part of sharing the love of God with others comes from experiencing the love of God for yourself, personally - The Lord Is YOUR Shepherd.