I highly, highly recommend looking into the "Bogleheads" approach to personal finance/investing. Here are some good resources:
John Bogle founded Vanguard and created the first index fund. He's developed a huge following for his simplistic approach to investing and has saved average investors literally hundreds of billions (probably trillions) of dollars that would've otherwise gone to fund managers/advisors/etc.
In short, you want to majorly diversify your investments and avoid fees as much as possible. Most financial advisors charge 0.5-1.0% per year to manage your money, meaning if you have $100,000 invested with them, they charge $500-1,000 per year. The dollar value of these percentage fees increase over time as the value of the portfolio grows. This doesn't sound like much but over time it adds up to a ton of money. On top of this, advisors will often put you into funds that charge fees (expense ratios) every year. These really add up over time. They'll also often charge various fees such as setup fees for new clients.
Looking at this example in practice, let's say you invest $100,000 and keep it invested for 30 years at a 6% rate of return. Your advisor charges 1% per year to manage your portfolio. This adds up to almost $145k in the advisor's management fees alone over 30 years. Add in whatever other fees the advisor charges along with the expense ratios of the funds they put you in.
So, what's the best course of action? First, you'll want to set an asset allocation you're comfortable with between stocks and bonds. If you're looking for high risk/high reward, you'll weight more heavily towards stocks. If you're looking for less risk/reward, you'll weight more heavily towards stocks. Personally, I'm in 90% stocks and 10% bonds. This is a personal decision and you have to take some time to decide what's right for you. Also, set up an emergency fund in a savings account with 3-6 months worth of expenses in it should you need cash.
Once you've decided on an asset allocation, invest in the entire market. Don't bother trying to pick individual stocks, sector-weighted funds, cryptocurrency, or other actively managed funds. Just buy simple, low-cost passive funds like VTI (Vanguard Total Stock Market ETF) and BND (Vanguard Total Bond Market ETF). These are extremely low cost to own (VTI is 0.03% per year) and basically just track the performance of the entire stock/bond markets. If you really need to scratch the itch of gambling on individual stocks or crypto, maybe allocate 1-2% of your portfolio to doing this.
Over a long enough timeline, it's extremely difficult for active fund managers to beat average market performance. When you reduce your returns with the fees they charge, it's almost never worth it. You can read Warren Buffett's take on this here:
Buffett's Bet with the Hedge Funds: And the Winner Is …
All of this depends on your personal situation so do proceed with caution and do your research, but the Bogleheads approach is tried and true. I'm really interested in this stuff so let me know if you have any questions.