The best resource I have found to renew your mind in the area of Biblical healing - other than the Bible itself of course - is the Divine Healing Technician Training (DHTT) teaching by John G Lake Ministries. There is nothing technical about it. It's just a name given to the training by the person who first trained DHT practitioners - Dr. John G. Lake (1870-1935). Here is a link to the audio and video of that training:
I suggest you scroll to the middle of the page and download the MP3 ZIP folder (only 170 mb). It holds nearly 15 hours of excellent teaching, that will open your eyes to what the Bible really says about healing. If you have felt that your life as a follower of Christ lacks power, then you must listen to this teaching. Listen even otherwise. You can also Google for the DHT PDF manual and use it to study the concept and scriptures for yourself.
The Bible says that as you sow, you shall reap (in Galatians 6:7-9). This means if you pray for others to be healed, you too will be healed. If you pray for someone's loved ones to be healed, your loved ones too will be healed. It's just like the law of gravity - whatever goes up must come down!
So why not let your life be fruitful for God and be the bridge that conveys healing to a hurting populace! First preach the Gospel if you can, then heal. The healing will then be a sign to unbelievers. Of course, if it's an emergency or an otherwise delicate situation, it's better to first heal and then preach. It may take some time to see results when you pray for people or lay hands on them (do not lay hands on private parts of anyone other than your spouse or small child; do not lay hands on the opposite sex, other than holding their hands or touching their head). But the Bible promises that as a Christ-ian, you shall lay hands on the sick and they shall recover. So they shall recover. No two ways about that.