Difficile
trop difficile à tenir is tranlslated 'too difficult to hold'. "tenir" may also be understood as in 'tenir une promesse', to stand true to a promise or commitment.
C'est trop difficile.
trop difficile à tenir
on est trop jeunes = we are too young
Too much of.
... qu'il est trop ... means ... that he is too much ... in French.
Il / elle parle trop means He / she speaks too much.
too fast
too hard
Too much of.
Vous êtes trop aimable / gentilYou are too kind. (when thanking someone)
it means not too fast