SOL is a good coin, but in my views its over-saturated for this cycle, i can be totally wrong but there many other worth risk-taking opportunities in market such as AVAX and LINK which haven't performed super crazy like SOL yet and I'm still bullish on the SOL but seems like from here we can only go for the max 3x in optimistic range but for the AVAX and others you never know,
Solana is still a great crypto for newcomers to the market, with low fees, a relatively secure network, plenty of new products and easy to use, specially with Phantom wallet
If SOL manages to do 2x or 3x I'd be very happy 
Yesterday I took advantage of the drop and bought some more SOL for less than 140 dollars
Unfortunately I wasn't able to catch last week's drop, but SOL at less than 120 dollars seemed like a great deal, since it has already rised a lot and we know it could reach 180 dollars again if BTC continues to rise
Your investment strategy is quite sound and your confidence in Solana (SOL) is justified. Solana is currently one of the most popular platforms in the crypto market, especially due to its high scalability, low fees, and ease of use. With Phantom Wallet and other new products, Solana is becoming an increasingly attractive option to developers and users.
If SOL can do 2x or 3x, it will definitely be a big success, and the way you got it for under $140 was a smart move. Bitcoin price increases often have a positive effect on the prices of other cryptocurrencies in the market as well, so if BTC increases strongly, strong projects like SOL often see price increases as well.
Stick to your strategy and keep an eye on the market. Buying at the right time and being patient can be profitable, especially when you are investing in a strong project.