I can't get my front door air tight. I have tried everything that the hardware stores have to offer. All kinds of weather seals. Right now I have a metal one with a rubber seal attached to it. You put it up with screws. You can adjust it by the screws. When I get the top sealed the bottom or middle leaks and visa versa. When I get everything sealed then I can't get my door shut. I am at my wit's end and winter is right around the corner. Any hints. I need help. Thank You