The correct inference about the speaker is:
A. The speaker wants to take a break from the burdens and worries of adulthood.
This is supported by the speaker's longing for the carefree nature of childhood and the joy it brought, contrasted with the current burdens and strife of adult life. The speaker expresses a desire to return to a simpler, more joyful time, which indicates a wish to escape the pressures of adulthood.