I know scripts will need to use lots of if statements. However, if I use too many will that be a bad thing in terms of script performance or won't it matter much for the script at all? And if it does matter, are there alternatives to using if statements which I could implement instead?

I think too many if statements does not really affect performance if they get executed. Alternative would be switch-case.

1 minute ago, Charlotte said:

I think too many if statements does not really affect performance if they get executed. Alternative would be switch-case.

yeah as charlotte said, use switch statements which will ahve cases - if ur switch matches the case it will then return xy or whatever ur case was.

Use as many if statements as you need. But if you find yourself with a series of 10+ if/else statements, then it could probably have been implemented in a better way.

Don't worry it won't affect the performance. 

Short answer; yes.

If you are creating a more complex script you can make us of polymorphism, referenced assignments and branches.