An engagement usually means eventually a marriage..DONT marry someone you dont love it will end eventually in a divorce..far better to end it now before it is too late.
You say your engegement has been done forcebily I would presume you mean this is an ''arranged marriage '' ? You need to talk very seriously to your parents if this is the case..and just hope they are understanding.
If I were you I would break off the engegement with your fiance' ,but talk to him first tell him of your feelings, he may be nice but does he love you? if it is an arranged marriage then maybe he feels the same as you ......you wont know the answer to your question unless you talk to him and your parents.