Quoting Britny TTC 2013™:" I just lost a friend at the beginning of the year who commited suicide and there's days I just can't ... [snip!] ... heaven because he killed himself which I personally don't think I believe. I just need to know how to come to terms with this."
<3 I am so sorry for your loss.
As for the Heaven thing, Romans 8:38 says "And I am convinced that nothing can ever separate us from God's love
. Neither death nor life, neither angels nor demons, neither our fears for today nor our worries about tomorrow--not even the powers of hell can separate us from God's love."
I am sorry someone said that to you, I think that is a huge misconception about God. I'm here if you ever need to talk. My father shot himself in '02, I know it hurts.