Having problems with separating different actions? (complicated question)

So basically I have all in one script a few moves that are all functional, the problem is that I can't use them for a reason I can't determine.

What I mean is I have 3 actions in the script, 2 are single moves, and 1 is a combo. The single moves are "R" and "T", while the combo is "Q", every move works, the problem is that "Q" doesn't work when I put it at the bottom of the script, and if I put it at the top of the script "R" and "T" don't work. (And I don't get any error messages, meaning I think it might have something to do with the way I return the script.)

I'm using the KeyDown function and not UserInputService for the "Q" combo. If I need to elaborate on anything else, tell me. (Also it was very late for me when I wrote this so if this is hard to read I blame it on that.)

function onKeyDown(key)
key = key:lower()

        if key == "q" then  
    butpress = butpress + 1
    if butpress == 1 then



        enabled = true

        print("Q 1")

        wait(2)
        if butpress == 1 then
            butpress = 0
            return
        end
    end


    if butpress == 2 then
        enabled = true

        print ("Q 2")

        wait(1)


        if butpress == 2 then 
                butpress = 0
            return
        end
    end 


    if butpress == 3 then 
        enabled = true
        print ("Q 3")


        wait(2)
        wait(0.7)
        if butpress == 3 then 
                butpress = 0
            return
        end
    end

mouse.KeyDown:connect(onKeyDown)

The reason I'm only showing you "Q" is because "R" and "T" work fine together but Q doesn't, and I think it has something to do with how I wrote it. -Thanks in advance