I am a Christian & as allready stated my wife is a Muslim who is very active in her religion , the laws in her book & my book are open to interpretation, our interpretation is that if the substance allows you to lead a better more productive life then its useage is ok , she will even drink alcohol on very rare occasions to help her relax , no pork though
Spirit body & mind all work together brother , if one is sick the others will follow , if using a substance in moderation allows you relaxation which contributes to you having better spirit or mind then one can interpret where it is medicinal useage .
No one can tell you how to worship or what values to have , keep in mind the New Testament & Quran are guidelines as to how we should lead our lives , not a mandate of blind adherence to the literal exacts ( Fanaticism) if your comfortable with your useage & truly feel it adds to the quality of your life then your conscience should be clean , if your useage is leaving you guilt ridden then its best to abstain from using & pray for the right answer.
For the non believers who dont pray , prayer allows the believer to meditate as well as ponder the consequences of his actions , something every human being should do even if its not prayer to a god & is just reflecting on ones position in life .