躊躇・考え直す

have second thoughts

I'm having second thoughts about going, actually.

hesitate to/be hesitant to

I'm hesitant to do that.

I hesitate to do that.

not ready

I'm not ready to do that.

I'm not ready for that.

be still on the fence

I'm still on the fence about that. It's a complicated issue.

hesitate   /'hezɪteɪt/　v)ためらう･躊躇する

hesitant　/'hezɪtənt/　adj)ためらう･躊躇する