Do I need to keep actual proofs for all my tax deductions claimed?

I keep hearing about long Condors. What are these and how can I actually apply these condors in my options trading strategy?

Last year I did earn some profits trading in options. It was a very small amount so do I need to disclose that in my tax returns?

If I don’t need to get my calls right, then what does matter in trading?

When I write options, how do price movements actually affect my profits?

How does the Income Tax Act actually define long term and short term capital gains?

How exactly does the set off of capital losses (both ST and LT) actually work while filing my returns?

How do equities actually impact my portfolio; both in terms of risk and in terms of returns?

But, how do I actually go about diversifying my risk?

How do I actually go about diversifying the risk in my portfolio? Can you please tell me an example?

How do I check if the property that I propose to buy fits into my budget, my tax bracket and also into my overall financial plan?