Only forward this choice   The only option/possibility is to go/continue forward

We are be isolated and helpless
Only/Just make my heart Hard strong or Just give me strength
(In order) to continue on/along the my chosen/selected path/road/route

Just give me the strength to continue on my chosen path

Only forward this choice (?)

We are isolated and helpless.

Only make my heart Hard (This is a sentence fragment and something is missing. Question, what makes your heart hard? This is what is missing here.)
In order to continue on the selected road (Again, something is missing here.)