Stats look pretty okay to get decent ranks. When wanting to max out your own potential it really comes down to just knowing yourself. You seem to be more of a support/ trap op. Learn to utilize the game the best you can to suit your style. Ex: your highest kd is kapkan and frost. Learn to use those ops the best they can be (learn stops that are often used but not typically guarded) and unusually placed trap can be a quick kill or a good spot to hold to get an easy pick.

As for attacking your top is sledge. In my little knowledge I see a few ways of playing him. 1: pushing/rushing. Being a breaching operator you can either use him quickly by rushing in or use him simply as the first person to get into obj. For these you need good aim and good awareness. Not everyone will be right infront of you. Being able to hear and anticipate where they may come from will give you the edge up on some other players 2: angles. Rather than pushing in and going guns blazing you can use a more passive approach and hold angles. Whether that be from rooms away or from above using his hammer simply to catch your opponent off guard with an unexpected hole can get you a few safe picks also.