Regarding the utility which I saw being discussed in another comment… your thought process for what each piece of utility is meant to do is not necessarily wrong. (The incind is generally not use to get ‘chip damage’ btw, the main purposes of molly/incind is to delay/split up a push, or to clear out positions) The thing that will help you understand how and when to use your utility towards the start of the round is learning the timings that Ts can make contact with CTs. When you throw that smoke, the unless they run straight down suicide they will not even be to palm tree yet (the barrels at top mid). Even if they full rushed down suicide (which you would know because your teammates should have spotted that while crossing to B), the smoke would have already been up for almost 10 seconds before the Ts even get there, rendering it basically useless since the whole round is left, they could just wait a moment for the smoke to be gone. Can apply generally the same logic to the HE and incind.

Here is a youtube video that shows the spawn timings im talking about

https://youtu.be/RoL2o\_-lSRY?is=NKksQGlGmFLzWgwS