'pesimistiaeth' - 'pessimism' - thanks for encouraging me to do a little dictionary work!
I hate to say this, but this sentence is actually terribly pessimistic.
Can this be "Will I never be fluent?"
Not with that attitude.
Only too true.... ;-(
Just as bad as some of the sentences in early lessons of SSiW - "Dw i wedi anghofio sut i siarad", for example.
Just wait and see.