Trek hybrid bike size

[nikica]

hey thanks for replying.
i cannot try larger size as they don't have it right now.
i have a small bike now and i do ride for years and i always had smaller bikes as they fit in my elevator. but those were city bikes. i would like to ride a proper sized one this time and this one will go on some trips with me.
Seller said that it really looks small for me.
i think i will go with the bigger size. Problem is if I understood correctly that it is worse to buy a bike that is too big than too small.
if i order this larger one it will still be with discount so i don't have to rush because of the sale.
on trek official page they also suggest 18/19" for my height.

I hope it will be fine.