Rule #1 of encryption, randomness, steganography, copy-protection or a million and one other related areas:
Just because you *think* it's better than a published algorithm reviewed by thousands of experts, doesn't mean it *IS* better.
Rule #2: Never "make up" your own encryption, random number generator, steganographic technique, copy protection etc. - it'll never work and if you *ARE* an expert, you'll know that you'll need to have people attacking it for decades before you declare it "secure enough". Even using the published ones "with a twist" or a new from-scratch implementation will compromise your encryption most of the time.
Rule #3: Don't trust in God when 2048-bit, peer-reviewed, PKE exists and has *never* been "cracked", even when terrorists used it and we needed access to the information contained within for anti-terrorist purposes. Seriously. There's never been a case where "real" encryption that wasn't hideously out-of-date was used and some random three-letter agency managed to decrypt it. There's a reason for that - that's what it was DESIGNED for.