What makes you think that this species whatever it is is suitable for carving? It is a deciduous species and most do not look right carved, there are exceptions but not many. There are two ways to carve, hand tools and power tools. I would not be a good idea for you to do either without help from an experienced person. Watching videos will not help. The tree you have has not been styled or pruned in any way for a long time and needs sorting first before any other work is done. You need to think about it before doing work.