Emma, welcome to LJs. Hmmm 4' x 4' space is a great start. Spend too much time here and you will need more than that just for tools. This place is very addictive!
Seriously, whether you are a handtool person, a power tool person, you want or are into carving, veneering, cabinet maker - from artestry to production sawmills, or anything in between, there are people on this site doing it - worldwide.
The best part is that most will give you great advice, sometimes a little tongue in cheek.
There are forums on sharpening your planes (or any other blade), tuning your planes, making bow saws and hand planes, to making water buckets, and veneering - even pictures of boat building (see shipwright). If it is wood related, its in here somewhere.
good luck