Time-Travel Paradox

If you can time-travel to the past
to change the future,
what if you change it such,
that you cannot time-travel to the past?

Would you still be able
to time-travel to the past in the first place?
Or would there be a first place,
in the first place?
____________

As long as unenlightened,
time-travel to the past
is like time-travel to the future –
infinite chances to get it (past or future) right… or wrong.