it's a bit long here so pls be patient with me,

this job i'm in now is an office job (my 1st office job)

the story goes like this i've worked in this company for 3 yrs almost 6 months & let's just said my manager & i do not see eye 2 eye (which is no secret in the whole office).

the 1st yr, she said she's not satisfy with my jobs performance so no bonus & said will extend my probation (joined in june) & etc. (ok, i thought maybe i'm a bit slow so i kept quiet)

2nd yr said i got improvement but said not what she wants but said can see my effort but said can only give 1 month.
(now, i thought ok, i got improvement but i didn't said much)
but she said these during the "talks" Quote: "how old are you now hah? don't u think at this age u should've some achievement in your life? What do u like to do? don't u think if this isn't what u want u should look for other things?"

this year, she said my jobs performance is not good & i'm too slow for her, did not make enough call (for her collection), she's done my position before & said it's an easy & nothing much to do kind of works (which happen to be 20++ years ago) & claim that even the part timer (a form 3 student) can do a better job than me & even that my colleagues who are working with me cannot tahan me anymore & she said if u were me would u wants to kept me & kept asking me to give her an answer whether i give her the "LETTER" / she will give it to me, Quote : "we're all chinese here & i don't like to give Termination Letter & if u give me then it wouldn't look bad for your record then."

now, the thing is i get along fine with other colleagues & since she claim that they cannot tahan me, i've ask around & so far no such complain (yet)......

these "talks" always happen in the year end (others claim she's under a lot of stress so she'll tend to be irritable very easily) but will make me depress (yes i even cried when alone)
so my question is whether i should just give the LETTER to her / ask her to do it (because 1 of my colleague advice me to not give the letter reason being they wouldn't give me any compensation)
is this true??

sorry for such long wind post, appreciate advice pls....
Thanks.