Translation for a song (cantonese)?

很信命

I believe in fate

不信有美好

I don't believe in the existence of wonderful things

幸福过更冷清

Feeling even more lonely now, for I have tasted happiness before

同情没法把不安驱走

Sympathy not able to chase away my restlessness

已是确定

It is confirmed

原来避免输不起 退出的方法

The method to avoid losing and quit

叫遗忘本性

Is called 'forget your trueself'

不甘不忍不想

Reluctant to accept

我只有越坐越静

Feel the isolation/Lonelier when the longer I'm sitting here

我的 快乐就象泡影

My joy/happiness are just like bubbles

派对布满爱情来临的风景

A party with so many scenes of love arriving

独自妒忌别人

But lonely me possess only envy/jealousy to others

谁能够高兴

How can anyone be happy.

注定无人来示爱

It's predictable that no one will confess love to me

我都不作声

I keep silent.

即使一个自爱也好

It's fine for the only person who loves me is myself.

越对我好

The better someone cares about me

越需要控制我反应

The more effort I need in controlling my reaction

对未来还没信心

Still lack confidence towards the future.

怎张开眼睛

No matter how I open my eyes

花花世界太过美

The world is too beautiful

那有我踪影

But there is no sign of my presence.

有更心跳选择

With a more tempting choice

而比我远远优胜

That are much more better than me

如何专一都想转性

It's hard to resist change, no matter how loyal.

与情人齐眉白发

To be together forever.

问谁可保证

Who can promise so.

-end

Hope this loose translation will give you some slight idea about the song. I try my best to keep the meaning as original as in the lyric.