Spacebar's key caps out can't replace

Hello , drop water on Macbook Pro 13" 2017 without touchbar everything fined.But Spacebar feel sticky, So I decide to take spacebar key cap out but I can't replace. Is there anything to do without go to Apple Store? They said I need to pay 300$ to repair all of topcase but There're only 1 key that have problem but I need to replace it all!