what can't I just do it

I 42f 114kg 178cm tall. I know what I need to do to lose weight, so why can't I just do it?

I've been to a nutritionist and she couldn't tell me anything new cause she mentioned that I know what i need to do.

I know that for me portion control, drinking 2 litres a day and no eating after 8 helps me lose weight. So what can't I just do it?

Looking for advice and tips.

Rant over, thanks for listening.

submitted by /u/No-Preference1285
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source https://www.reddit.com/r/loseit/comments/ynd52n/what_cant_i_just_do_it/