fact 1: a common way of continuing a conversation is sharing your own experiences, either as a way of showing you relate, or to add information you got based on your experience to the conversation.
fact 2: however, doing so in an unskilled manner, for example by stating facts that don't add anything to the conversation, or taking too much time to talk about yourself instead of listening, can displease your conversation partner, make them think you're cringe as well as weird, or ruin the flow of the conversation completely.
solution 1: speak solely in aizuchi and enthusiastic rephrasings of the last statements your conversation partner made
solution 2: don't think about it too much, it'll make you too stressed to enjoy hanging out with your friends. instead, leave that for when you're back home, and always make sure to conclude that FUCKKKKK I TALKED FOR AN HOUR NON-STOP I'M A PIECE OF SHIIIIIIIT