Hi Julius, & welcome to IFI.
May I suggest you edit your profile to show where you are, as there may well be someone close to you who's willing to help, and it'll help us to suggest local resources.
Second, make sure you don't overlook the sections on bladesmithing here, there are some hugely respected names who are members here & may help.
Third, join the forums on Don Fogg's site and British Blades. Both places have an incredible wealth of information & also very many people who are willing to offer advice & assistance.
And to answer your questions - depending on the size of steel, you may find you can get it hot enough with a torch. But a small forge would keep the heat in & make it all a LOT more efficient & easier. A one-brick or baked bean tin forge will do fine with a small torch for pocket knife sized projects for e.g.
To make pattern welded steel ,which I think is what you fell in love with, is simpler than it may seem, but like so many things is also harder than one feels it aught to be to get it right every time! You'll need to get the metal up to forge welding temperature to stand any chance.