My main problem when travelling alone has usually been the actual travel part: it's much harder, for example, to make enquiries at a busy railway station or work out which stop your bus or coach will be leaving from if you have to negotiate luggage and so on — much easier to be able to send one of a party of two or more to do the scouting while someone else minds the luggage.
Your problem is not that you're alone but that you're carrying too much luggage :).
