It is hard to hit fluid (& protein) goals at first but it does get easier. As long as you’re making an effort & getting closer it’s fine.
Keep your drink beside you. I have water in my bedroom, on the kitchen best, on the coffee table by the tv, etc. so I just pick it up & sip wherever I am. I also found setting routines very helpful. Set a timer to help remind yourself to sip. Drink every time you do a certain thing. For example one I do is drink every time I get in or out of my car & at every traffic light. A friend to,d me recently she used to play the drinking babe in work meetings - sip every time someone said a particular word or words ( originally she said she sipped every time someone said something stupid but couldn’t keep up 🤣🤣🤣.) I also drink at night - every time I get in or out of bed I drink - it can be quite a lot because of all that peeing - lol!
I also find it all balances out in the end. You may drink a little less today, but drink a little more tomorrow. Same with your eating. Don’t forget your soups & shakes count towards your fluid goals too. I used to dilute my shakes for more fluid & just kept sipping so no distinction between eating & drinking,
All the best.