Also, be very careful not to touch people of the other sex.
Why the fuck not? Are you afraid they will give you cooties?
Be careful when you are walking not to bump into the other sex, as that might tempt you more into sin.
"More into sin"? There is nothing in your holybook book that says the mere act of touching the other sex is a sin. As for your "temptation", it's is wholly a by product you your sexual self repression. You spend so much time and effort into repressing your natural sexual desires that it has becomes all that you think about and obsess over.
As you can imagine, this is probably difficult in large crowds
Ya think?
I would advise to wear covering clothes
So burka's for all?
even when someone else sees you with suggestive clothing and looks at your lustfully, you have already given more of yourself
Dude, that average teenage boy can look at a woman in a Hazmat Suit surrounding cardboard boxes and still get turned on. Hell, i know people who think women who are wearing burka's are sexy. It's unavoidable, no matter what anyone wear's there will always be someone out there who thinks it makes them sexy. And yet you want to blame the victim, as if it's they're fault someone else got turned on.
Another great way to avoid physical contact with the opposite sex is to give side hugs.
If your intention is to avoid physical then they don't help one bit.
They are great at showing the person that you care,
They are great at showing the person that you care, just not all that much.
but if the front of our bodies touch, it will lead me down a path I don't want to go
What makes you think that the other person doesn't want to go down that path with you? It what fucked up world is brushing u against someone an invitation to fuck them? Just because the front of their body brushed up against yours doesn't me that the person wants to strip down and fuck you. This speaks volumes on both your level of sexual repression and your fucked up thoughts about interpersonal relationships.
You need to seriously seek professional help, and until that time you should probably continue to avoid contact with the opposite sex before your skewed bent on interpersonal interactions ends with you being charged with attempted rape or worse.