方がいいと思うよ

I think you'd better

→ 方
phrase Uncommon #16,533
I think you'd better Used to give advice or a recommendation in a conversational, relatively gentle way. The verb or phrase before 方がいい indicates what is recommended; with a negative verb, it means “I think you’d better not.”
JA: 疲れているなら、今日は早く寝た方がいいと思うよ。
EN: If you're tired, I think you'd better go to bed early tonight.

雪が止むまでここにいた方がいいと思うよ

I think you should stay here until the snow stops.

トムこの映画は見た方がいいと思うよ

Tom, I think you should watch this movie.

やらない方がいいと思うよ

I don't think you should do it.

窓は開けない方がいいと思うよ

I think it would be better not to open the window.

— ハウルの動く城 (2004)

君のプロフィール写真変えた方がいいと思うよ

I think you should change your profile picture.

休んだ方がいいと思うよ

I think you should get some rest.

そんな文句ばっかり言うのはやめた方がいいと思うよ

I think you should stop complaining so much.

全てを鵜呑みにしない方がいいと思うよ

I don't think you should take everything at face value.