How should I change my routine for sensitive skin during the change of seasons?

My skin has become sensitive lately, so I'm wondering if I should change my basic skincare products.

Especially since it is the change of seasons, my skin is dry and breakouts keep popping up.

Right now, I'm only using toner, essence, and cream. Should I add something else to my routine?

For example, I'm confused about whether it would be good to add things like serum or oil, or if it would be better to reduce them to a minimum.

Also, there are a lot of trendy products these days featuring hypoallergenic ingredients or skin barrier strengthening, and I'm curious if they are actually effective.

What is your skincare routine when it is sensitive?

Please let me know if you have any products or methods you would recommend!