I have never heard of yahiedo... can you tell us what it's all about? Judo and Aikido might get you confused if you've never done anything before, as they both revolve around close-range grappling. It might be better to get a firm base in one of the other before branching out to include something else. If you were taking, for example, Judo and Muay Thai, or some other striking art, it would probably be a lot easier to separate the training in your mind.
Yahiedo? I say 99% that it's misspelled. For Judo and Akido: Both involves close-combat, so just pick one. Perferberly, in my opinion Judo is more user-friendly.
yeah thats it my friend mispronced it to me so naturally i mispelled it, but it is metioned as a grate sword fighting form.