People will forecast storms for your plans. Forecasts are guesses. Pack an umbrella and go.

Predictions about your plans come from people extrapolating from their own experience, which is not yours. Some of it is genuine concern and some is discomfort at watching somebody try. Either way it is a guess about a future nobody can see. Treating it as information is reasonable; treating it as a verdict is not.

Take the practical part of the warning and discard the mood attached to it. If they say the money will be tight, plan for that specifically. Then go anyway, prepared rather than persuaded.