If someone feels that he was forced by his parents to receive certain sacraments like confirmation, is he still held to his confirmation promises or is there an annulment process for other sacraments as well?
Ordinarily speaking, no one should be confirmed against his will (cf. canon 889 §2). Someone who is not properly disposed to receive the graces of the sacrament of confirmation simply does not benefit from those graces. Once he is properly disposed, the graces will begin to benefit him. However, there is precedent in canon law for annulling sacraments besides marriage. Please see the link below for more information.
Other Sacraments Can Also Be Declared Null** by Fr. Michael Smith Foster, J.C.D.
Note: Thanks to Catholic2003 for the link to Fr. Foster’s explanation.