Hi, as Gertie has said, the first one should be "I would do", not "done".
The main difference is that "I would do" looks to the future, and it's something that can still happen, but "I would have done" looks to the past, it's a hypothetical condition that hasn't happened and won't happen.
If I won the lottery today, tomorrow I would buy a new car. --> The condition hasn't happened yet, and the outcome is still possible.
If I had won the lottery yesterday, I would have bought a new car today. --> This is an "irreal condition", the condition is in the past, and can't be met, so the outcome is hypothetical/irreal/can't happen anymore.
You can read more about the three types of conditionals (the above are only two of them!), with more examples here: