I drunk so much last time that I will drink moderately next time.
I drunk so much last time that's why I will drink moderately this time.
こんにちは!!
「この前は飲みすぎたので、次は、控えめにします。」というのは「I drunk so much last time that I will drink moderately next time.」と表現になります。または、「I drunk so much last time that's why I will drink moderately this time.」と表現もになります。
「飲み過ぎて二日酔いでひどい状況になったので、次は、控えめにします」を表現すると「I drunk very much so I got a terrible hangover last time, that's why I prefer drink moderately next time.」になります!
I had too much to drink the last time I went out with my friends. The next time I'll try to cut back on the amount I drink.
この場合、次のような言い方ができますよ。
ーI had too much to drink the last time I went out with my friends. The next time I'll try to cut back on the amount I drink.
「前回友達と飲みに行った時は飲み過ぎたので、次回は飲む量を控えたい」
to have too much to drink「飲みすぎる」
to cut back on ...「控える・ほどほどにする」
ご参考まで!