Hi Kieran
You say you're 14. As Yew Selfbow mentioned, are you a member of an archery club already? Have you done a beginners course? If not then I'd save your ?100 for a bit. Many clubs will loan or rent basic
recurve bows suitable for beginners, plenty good enough for at least your first 6 months to a year and you'll get advice from experienced folks on the best bow for you as you progress. By then you may have built up some more money (birthday / Xmas etc) to have the ?200 - ?300 that will get you a better quality
recurve and other equipment, or an entry level
compound.
If you weren't planning on joining a club, then I'd strongly recommend that you do if archery is going to be an interest worthy of investing your money in. Unless your family owns a
lot of land, shooting in the average back garden or in public places is an accident waiting to happen and could get you into serious trouble.
Enjoy your archery