Long term or short term investment? One time lump sum investment or investing a little each paycheck? What's your risk tolerance? The answers to those questions are needed to answer your overall question well
Long term.
Like normally I do a mix of index funds wide diversification plus bonds 80/20, but even vanguard (despite always saying "get a plan and stick to it, tune out the noise") are all of a sudden saying they're under weighting growth stocks..
(Which I think is a bit strange that they don't acknowledge that it's different from their normal strategy)
Long-term is easy, and what you describe you are doing sounds fine. The hardest part is when you forget it's for long-term and worry about short-term events like recessions and bubbles. Don't let those short term things shake you! It's going to be fine