My pink kissing gourami is swimming wildly and one of my tiger barbs just died after the 2nd day, pleaase help?

Usually it takes up to 6 weeks to cycle a tank. Did you test the water before you added the fish? Your water should test 0 ammonia, 0 nitrites, 0 nitrates, otherwise all of your fish will die or not live long. You also added to many fish at once which makes your ammonia spike. You should only add 3 fish at at a time and test the water after you add them to make sure your water is healthy.