Billy accidentally hit a baseball through the neighbor's window. Initially he felt but after his Dad called him "stupid," he felt .

guilt, shame                                                                                            

Explanation:

Guilt: In psychology, the term "guilt" is determined as a phenomenon through which an individual feels remorse or responsible related to a certain crime, offense, etc irrespective of the fact that whether it is imagined or real. Guilt is often related to "others".

Shame: In psychology, the term "shame" is described as the phenomenon in which an individual feels pain that generally arises from his or her consciousness related to something which is considered as ridiculous, dishonorable, and improper, etc and usually implemented by others or oneself.

In the question above, the given statement signifies guilt & shame.

answer; for good luck