、！
That said — get carried away and you'll invite failure, so watch out!
Literal
However, momentum get-on [if-と] failure [obj-を] invite [because-ので] caution!
ただし 'however / provided that' is a formal conjunction for adding a caveat to a previous statement, more written than でも or しかし. 調子に乗る (literally 'ride the rhythm') is an idiom for 'to get carried away / let success go to one's head.' 失敗を招く 'invite failure / bring on failure' is a formal collocation where 招く '(to) invite' is used abstractly for bringing about a state or consequence. 注意 as a standalone imperative.