First of all, the fish missed the frog, you did not miss the fish.
Your rod should be at 1 o'clock on the retrieve. When you see the strike, drop your rod tip and watch your line. If your line moves, reel up the slack and set the hook hard with an overhead set. If your line does not move the fish does not have the frog, YET. Wait for a second, then twitch the frog, wait, then start your retrieve again. Many times the fish will swat at the frog to stun it or just flat miss it, and then come back to finish it off.
Also, make sure your rod is stiff enough. 7 ft MH at a minimum and 65 lb braid.