Okay, well, you should probably just work with what you have right now. Longer term when you need new supplies, get an ink that comes with profiles.
So for now, you can adjust the color balance in the print driver when printing (read the help for your printer and graphics application to see the relevant details). And/or, you can adjust the colors of the image itself.
More than likely your monitor is a piece of garbage, as most are, so don't expect what is on screen to match what ends up on the shirt (even with ink profiles). Anyway, tweak as needed to get the desired results. Note, you need to press the art onto an actual item in order to see the true colors, the transfer paper will look a bit different than the final item.
Note also that a computer screen has light shooting out of it. That cannot be replicated by any printing process on any medium. Tweak as needed to get something that looks good on the shirt/item, forget about the monitor.