The same form is filed for an applications for asylum, withholding from removal (WOR), and withholding under the Convention Against Torture (“CAT”).
These three forms of relief look at the same basic situation but each form of relief has an increasing burden of proof based on severity of the threat to you.
IF you have a solid case for relief but have failed to file timely (and do not qualify for asylum because you cannot meet the exception for changed country conditions?), then the qualifications progressively change somewhat.
Asylum starts with a showing of past persecution, IF unable to demonstrate that, then you must show a subjectively and objectively reasonable well-founded fear of future persecution. For WOR, is must be "more likely than not " that you will be persecuted. For CAT you must show that it is "more likely than not" that you would be tortured (or even killed) if forced to return.
ALL of these rely on meeting the statutory definition of a refugee and the persecution must be "on account of" a covered ground in that definition.
ALL of this is premised on a finding of "credible" testimony and is enhanced by "corroborating evidence" but solid testimony MAY be sufficient.
There are a great many cases all over the place that guide applicants and their attorneys on how to succeed or how to fail. The bottom line is "don't lie" to immigration authorities about the claimed fear.
There is help out their. Start with the pro bono legal help at the link in the other post.
Good Luck,