Id say mainly stay positive AJP!!
I speak from experience, evry labour is different! My first lbour was 24 hours, drug induced, 3 hrs pushing and 3rd degree tear (labour sounds quite a lot like yours).
My second labour though was 4 1/2 hours in total from first contraction. Pushed 3 times and she was out. Very small tear. It just goes to show that all labours are different, and chances are, your second will be a lot better than your first.

God Luck and stay positive!! Try not talk yourself into feeling like a failure. X