Leaving your king in the center makes it more vulnerable most of the time. If the center gets open your sol. Every position is different. Somtimes we can delay castling and make the opponent wonder if your going long or short, somtimes just moving the king to the 2nd or 7th rank and connecting the rooks is best. Think it was 2 games ago i played where i did that. Somtimes if i castle and they launch pawns down the board i just make a blockade. Having a bishop an knight hang around the castled king is good with an aggresive opponent. Some peices have to be assigned to defensive duty and hang back. Navigating a closed position. Im not the best defensive player by any means but i try an create equal danger or just make some profalactic moves to anticipate a castled king attack.
Castling makes my King vulnerable???
Then there are those of us with games like a recent OTB one I had where I wanted to launch a king-side pawn storm while my opponent had the option of opening the a-file. With the center blocked I played Kd2, Rag1 and attacked (successfully). My opponent had his king defended by his fianchettoed bishop, his other bishop, both rooks and his queen but my pawns, two rooks, queen and knight exploited his weaknesses (he had so many defending pieces they are restricting his ability to move them - my bishop, my other knight and his knight were not involved in the king-side battle).
Your king is exposed in the centre because of all your pawns pushed forwards there. Castling allows to get the king to safety, although in some cases, it is not safety you are achieving. (Quote from some guy my Dad met)
I mean it rlly depends on how you use the castle bc it can rlly help u I would recommend (if u were to use the castle again ) moving it into a area where more pieces can protect your king that way ur rook can also defend the same line ur king goes onto as well as the other pieces that may surround it !
"Castle when you have no better move."