+1 for E-UNI.
As for consequences, you can (and highly recommended to) create at least one but preferably several alt accounts (note accounts and not characters on the same account, which you can do so even on the same e-mail address) and train one char on each of them parallel so you have a clean character that you can use even parallel to your main in case you want some different gameplay as a form of R&R or whatever reason.
Later you can also switch to one of them as your main and have its corp history suitable to join other corps which would otherwise reject you for joining a corp they despise.
The reason I recommend to do this as soon as you can (and afford ISK-wise, though the price of skill books is not much for most skills) is to keep the alt(s) as close to your main’s level of training as possible not to be limited when you switch.
You can train the other chars (which recommended to stay as alpha to conserve subscription fee as they probably will be underutilized to warrant a sub of their own) up to ~5.5 mil SP which should be more than enough for many activities and if you plan to switch for a longer period you can PLEX them from your main’s income by that time or pay for a sub if you feel it worth it.
Edit: Also you may check my guides and giveaways which may be of use to you: