Pretty much a general rule is that you can cut any plant back to a few leaves on a branch and it will branch from there.
That is an ezpz you might do right now
The second general rule is that you wait until the new growth has emerged and turned dark green, then when you cut back it will have a maximal effect on making more branches. Then you can begin choosing which ones you don't want and pruning them away, progressively working toward making the tree look like you want. It still might be hideous, but it will be the hideous you made, instead.