Hrmm.. Agreed with Sidoh.
I have been tempted a lot to do weed by people I know, and I have not given in to temptation. I am not too worried about it. If you say your morals were really that strong, why did you do it? It seems that you are contradicting yourself when you say that. How can you have strong morals, but at the same time do something you are against? Wouldn’t that mean you don’t really know yourself and when you say you have these "strong morals” when you really don’t? I have been faced with this, and I have overcome it. That’s how I know I have strong morals.