You sound like someone in desperate need of a hug. You're addressing some pretty serious topics. I'll hit them one at a time and hopefully the information I'll give you will help bolster your faith. First, about lying to God...
There is an illusion cast over our eyes as we are growing up. Its the illusion of mortality and it is such a tightly woven and intricately detailed illusion that only those with deep faith are able to penetrate its closely tied fabric. As we go through the first twenty or so years of our life, society teaches us that we are on the road to death. Of course, we view this as punishment. We view our very lives as punishment. So, using the wonderfully scientific and philosophic logic that this world provides us with, we think that purely because we exist, that God is punishing us. However, I ask you to take a look at the logic that I, and many others, use:
There are two parts to this world, fear and love. Fear makes me feel bad, therefore I will choose to experience love, which makes me feel good. No matter what happens to me, I will choose to respond to everything with acts, messages and gifts of my own love so that I may more easily and more often receive love in return. An existence in which love is all that is experienced is a gift. Therefore, I should thank whoever gave me this gift. Natural logic tells me that nothing happens by itself, everything has a creator. So, I should thank whoever created me for the gift of life (& love) that I have been given.
Of course, you could argue that your parents created you, but I ask you to look farther than that. I ask you to look to who created everything you see, touch, think, taste, hear and feel. I ask you to thank who created creation, God. Okay, on to the next question.
Evil comes about when people choose to use fear instead of love. Of course, this happens as you're growing up, just like everything else. Certain things induce a feeling of fear in your heart. Influenced by whoever instigated that fear, you do what they want you to do. Observing the "power" that person exerted over you, you think that to get through life successfully you must induce fear in others. And now you're using fear on other people: to get ahead, to make friends, to keep spouses; it becomes a habit. Suddenly, one day something happens that changes your view on how you've been doing things. It might be a near death existence, the birth of your child, whatever, but something happens and you realize that you've been doing things incorrectly. Now you experience a split mind. You run your life one way, but you know you should be running your life another way. This happens to everybody. This turning point usually happens during the teenage years, but it can happen at any time during a person's life. So, now you know you should be loving everybody, but you feel you can't. And in your mind, because of the "fear program" you've got running in your mind, you have been "mastered" by fear or evil or Satan, whatever you want to call it. That is why you feel Satan is after your soul. And to be honest, its pretty easy to change that thinking. You've just got to start believing in the power of love instead of the power of fear. Its not a part-time gig, either. You need to do a complete switch in order to feel any better about things. There's a lot of helpful hints on this webpage in order to help you along with that switch, but my advice to you is to hang out with loving people and follow their lead.
Also, its easier to avoid Satanic paranoia when you are completely drug-free. :)
Love and Prayers, Shay