Good job on getting things going in the right direction.
I just have a couple technical pointers that might be of help to you. When you
achieve your intermediate goal of buying a house and are ready to up your longer
term, retirement type savings contributions, tax placement will be a consideration.
Research "backdoor Roth" and especially "mega-backdoor Roth". There is loads of
information on the web, but they are easy to understand. Understand how you need
your IRAs deployed to facilitate the "backdoor Roth". Check with your 401K plan
administrator to see if your plan allows the moves to accomplish the "mega_backdoor".
If not, it wouldn't hurt to request a plan change to allow it. Lastly, spend a little time
researching High deductible health plans and Health savings accounts to see if that
is something that fits with your lifestyle.
The reason to understand these dry topics is that your plans include a savings rate that
excedes the typical savings vehicle's limits. Taxes are a drag on savings performance
that compound over time, just like investment returns do in the opposite direction. Getting
savings into tax sheltered space becomes a big deal when the investment horizon might
be 30 years or more. Just because the accounts are designed for "retirement" doesn't
mean they can't be utilized for other long term savings goals. Roths in particular are
pretty flexible in what is allowed for withdrawals.