Well personally it's same, I leave the crypto for about 1 month and tons of happening. Crypto was growth really quickly, Just try to follow the flow slowly. DeFi or NFT Based coins still have good chance, Not an financial advice  but your should check CAKE and Vulcan Forged.

Depends but I think coins that have their own Blockchain have better potential but even so it is not a guarantee of the success. Sometimes some Coins will be based on Ethereum, BSC, TRX before launching their own chain (Testnet Stage) So this doesn't really matter while the project is actively developing it.

Just an little Advice from fellow newbies, Try to Look some coins/tokens or projects that introduce an new innovations, such as AIOZ with CDN, Arweave with Decentralized Storage, AAVE with it's compound or ccFOUND with it's community-driven social platform. The most important thing is a fresh and unique new concept, Good luck!

Reminder

Basically there is no other way, So far i know Gas used will be always same but the Gas price will be different, Just send the token on UTC Midnight and the price will be much lower beside that use an alternative network and Matic Network is one of them, Basically it's an bridge if you are looking to send tons of transaction, Send it to matic then distribute it and you also can use DEX To do swap like QuickSwap.

For long-term Investment, Yes it is. It's still offering to become alternative currency especially after lighting network but beside Bitcoin there was much better other cyptocurrency like Ethereum, TRX and many more with tons of unique use case. New People was still hyped from last bullish trend so it's normal when there was huge spike on the markets and forum same like 2017. Well, it was good it's not?

Basically i'm not really understand whole Vechain technology but understand some it's basic about it's technology. Yes it's have some good benefits comparing to other competitors but i personally didn't heard any big news 2-3 months before but lately there are some big partnership like enterprise adoption demo with sales force and Exclusive partner with DNC & PWC, Looks like it's going to have another big partnership for sure.

Basically it's depend on which exchange, For this case i suppose this was small exchange and have some problem or fishy scenario and i won't trust CEX with something like this but there will be different case if CEX like Binance, Bittrex, Kucoin, etc. I will trust it since i suppose they was more care to their reputation and better to become an long-term Crypto exchange.

Depends on the condition, Car was second needs and if you live in State, EU or Japan i suppose it's worth to buy Tesla car with Bitcoin and if you need it for work, shopping, etc but if not i supppose it's not. Better to sell your crypto first and buy some cheap Second card, Cost cheaper and more reliable, Well basically it's depends on your needs & money. Yes, Long-Term Holding is good and there will be another "Bitcoin Pizza Day" But if you need it then why not?