I don't think that 5k euros to invest in crypto is good idea.. many cryptos now are unstable, so you might lose money. Better trade bitcoin/fiat, this way you will earn more
the crypto market in general has always been unstable, so that's nothing new here. but even trading bitcoin comes with risks. especially when you don't know anything about trading. that's when the risk factor is even greater. nothing comes easy here.
Bitcoin prices nowadays are more stable, and it is not fluctuating around 10% a day like earlier it uses to do. So investing in bitcoins are much better compared to investing in altcoins. Altcoins are very risky even for experienced traders also because no one can predict when it goes up or down. 5K investment in bitcoins is not very high but after investing need to watch out price movements regularly and once it reach your target price then should book profits.