Vous avez cherché: be yourself and never give up (Anglais - Latin)

never give up
non assis facis

never give up!
numquam noli concedere!

never give up for you
numquam deficere in caritate

be yourself
semper te ipsum

never give up the fight
semper pugnare non deficere

i will never give up on you
i non deficere in te

never give up, never give up
numquam cede numquam deficere

always be yourself
semper te ipsum

i will never give up, never surrender
nunquam redono nunquam deditionem

be yourself, love yourself
ipse nosce

trust only yourself and god
trust only god

always keep fighting (like "never give up")
semper perge pugnare

know yourself and learn to suffer
cognosce teipsum et disce pati

and it yourself, and keep it secret
et tute et secrete id serva

you can never give what you did not have
ex nihilo nihil potest stare

believe in yourself and respect each other
per fiduciam ad maius

don't give up
nolo dedere

do not give up never surrender
non obliviscar