As you have told, you are suffering from a meningioma
presently measuring 3.5x3.5x2.1cm which was earlier 3.3x2.4x2.3 cm in left parafalcine vertex location.
Coming to your specific question on surgery, any surgery to do with the head is not simple. However, in your condition (meningioma), most surgeries are safe with minimal associated complications.
Further, there are no major blood vessels in that part of the brain where the meningioma has formed. The recovery in your surgery will be real fast and you will be able to do almost every thing as you are doing now. Your doctor may give you few medicines immediately after the surgery.
Please consult a neurosurgeon and I am sure you will be cured soon.
Hope this helps.