You should put a sulfite stop bath (acetic acid + sulfite) between your color developer and bleach, and it doesn't hurt to add a rinse after the stop. You do not want to contaminate the bleach with color developer and thereby produce staining.

Color is not nearly as difficult to process as most would have you believe. The bleach and fix temperatures are not critical, but should be near to the 100F processing temperature. It's just not all that difficult if you follow good, consistent darkroom practice and are not sloppy about time and developer temperature.