restrict yourself to something
phrasal verb with restrict verb [ T ] uk/rɪˈstrɪkt/ us/rɪˈstrɪkt/
约束自己不越出…的范围；将自己限制在…限度内
to limit yourself to one particular thing or activity
If I'm driving, I restrict myself to one glass of wine. 我要开车的时候，只许自己喝一杯葡萄酒。