Indeed so.
The Jesus Prayer is what I use. “Lord Jesus Christ, Son of God, Have Mercy on Me, a Sinner,” or in a shorter form, “Lord Have Mercy,” or “Christ have Mercy.”
I also like to pray the Hail Mary*, a non-intercessory version of which was also much loved by Martin Luther, as my dearly beloved friend @MarkRohfrietsch will attest , and my view is that if Martin Luther loved that prayer, any Protestant should feel completely comfortable praying it.
So yes, I daresay that what we have discussed, you and I,
@public hermit , represents a menu of things
@Dave Darling might consider. Probably the Jesus Prayer or “God make speed to save me, Lord make haste to help me,” as you suggested, would be ideal.
*I pray the version with intercessions but I don’t expect all Protestants to get on board with that, although many Anglicans do.