You are saving 18.5% (6+2.5+10) of your gross salary pretty much on autopilot. Way good! And your emergency fund is at 5 months. I think six months of expenses would be fine. Emergency money is just cash; at this point for you, keep it away from your checking account, but close by, like in a companion account at your bank. Don't worry if it is not growing; these employee$ help keep you safe. The employee$ in the 401K and Roth work on longer term gains. But they need good directions from you.
Green Guava nails it on retirement accounts! Remember to use low cost firms, like Vanguard, for a Roth or an investment account. Go to their website and take some of their questionnaires and find out what type of investor you are. Read investment books, like:
Burton Malkiel, The Random Walk Guide to Investing, Taylor Larimore, et. al., The Bogleheads’ Guide to Investing, Andrew Tobias, The Only Investment Guide You’ll Ever Need, Thomas Stanley and William Danko, The Millionaire Next Door. Stay away from the big firms, like Morgan Stanley, the bank brokers, insurance companies, and certainly, stay away from someone who comes to your home for your non-401K vehicles.
I would fill the 401K before doing a Roth because it decreases your taxes at the highest marginal rate that you pay. That really helps in the long run.
Buying a house is nice; we have one, but remember, it is a housing expense which could be a wealth builder or a cash guzzler. Bigchrisb writes about houses: "My view is that my "home" should have the lowest operating cost that I'm prepared to live with. I don't actually care if that is made up of rent, interest, imputed rent of the opportunity cost of capital, or other outgoings such as land tax, HOA dues or rates. I guess I view the cost of housing very much on the "consumption" side of my cash flow, rather than the "asset" side of my balance sheet.
As for what proportion of net worth should be property per-se, well that's an asset allocation question. My personal view is 10-15% of net worth, between principal place of residence, investment residential property or commercial property/REITS. However I realise that for many, this is a mismatch against the aspirations people have for their home."
And some thoughts. A residence/property with a mortgage is a leveraged investment which may have significant upside and downside potential that legally requires consistent input of cash- principal, interest, taxes, HOAs, insurance, fees, and maintenance. In the US real estate is bundled with education and other local services. Because a mortgage is a leveraged instrument, risks and benefits are magnified. A 40% decline in home value, means, at least, a doubling of loss at liquidation, assuming an 80% loan, and conversely. For me, this suggests a lower asset allocation to real estate if it is leveraged.