Mostly depends on the rootstock, the size of the pot, the amount of sun, and how you treat it and/or prune it. A Meyer, planted in the ground and left alone will normally get about 3 meters tall and be more of a bush than a "tree".

LC - A branch attached directly to the trunk or main leader is a first order branch; a branch directly attached to a first order branch is a second order branch, and so on. Having been truncated, that is to say the growing tip of the branch removed, any branch or stem can no longer extend. You'll need to depend on a first order branch or a series of branches of sequential orders to rebuild a leader, and that's not difficult to do, at all.

Bonsai practitioners find taper desirable in their trees, so they often plan well ahead by designing the tree's shape by using a sequence of branch orders. You can do the same.

The image above of a quiescent maple about to break buds shows a dressed wound where the vertical part starts to turn to the right. The trunk was truncated immediately above the branch moving diagonally to the right. When that cut was made, a first order branch was turned into part of the main trunkline. The small branch, wired to give it movement, was a second order branch before that cut was made, but now it's a first order branch. The part of the trunk to the right of the branch will eventually be removed, as it's only job is to thicken the trunk so it has taper. When that is removed, the small branch with wire on it which was once a second order branch, will be the new trunk, and all branches attached to it will be first order branches.

You can choose a branch that's growing in a direction that provides some visual balance and make that your new leader; or, you can choose a branch that's almost growing in the perfect direction and wait for a branch of the next order to grow from that branch, and make that 'next order branch' the new leader. In the later case, you'd actually be depending on a branch that doesn't yet exist as your leader.

So, if your tree is now 10" tall, you need to be thinking vertical or near vertical as you plan. If you provide some images, I should be able to offer some guidance.

Al