I pray and try to keep close to God
You mean the same "god" which has created this parasitic worms in you ? Very benevolent indeed...
Your way to see things is what will make the difference between those who give up and those who don't give up and keep refining their approach in order to be better and feel better.
Consider that the alternative (to give up) will result in the dysfunctioning and then the destruction of your body and most likely in the end of your existence (i have not seen any convincing proof of the survival of the mind after the death...) So what do you choose ?
Also keep in mind that killing the parasitic worms is only a part of the solution, you will feel better and have a body in a better state if you improve what you breath, drink, eat, move all parts of your body regularly, expose your skin moderately to the sun EMW, sleep enough hours, help your liver gallbladder, kidneys, colon, to eliminate waste, etc...