This is why buying a house is no easy task. There are a lot of things to be taken into account. For example, if you want to start a family, you need to be sure that the house or apartment is in a safe neighborhood, close to a good school and many other things.
When buying houses, people think that the price is everything. What really matters is location. Is your house close to where you work, to a school; is it in a quite peaceful neighborhood? If it is too far from your workplace, even if it's cheaper, you'll need to spend a lot of money on gas or on public transport to get to work and to do your groceries. Also, if the house or apartment is in a bad neighborhood, your house may be burgled.
Buy a house according to your needs. It is no use to spend a lot of money on a house with three or more bedrooms if you are not planning of starting a family. Think of the maintenance cost and utilities you'll have to support by yourself. If you plan on living by yourself for a long period of time, go for a one or two room apartment! You can find great ones in advantageous locations! If, on the other hand, you are looking forward to having a family, pick a house that provides space and comfort. You'll need it when the kids will start growing up!
Moving out of your old place is also a thing to consider. You'll have to spend a lot of time packing all your belongings and deciding which of them you'll keep and which not. In most cases you'll be forced to throw some furniture away. You should always pack everything of value, both material and emotional. Wrap your furniture in foil, so that it won't be damaged, especially armchairs or the bed mattress. Pack your jewelry in little boxes and do the same with any fragile object. You can wrap them in paper so that they won't clink to one another and break.
Moving out into your own house is a wonderful experience and you prepare as best you can to make it perfect!