Actually I was not being able to decrypt my BIP38 to get the private key, but now I did it using bitadress.
Still I am confused what does mean decrypt private keys. Did you mean you are unable to genarate private key or you didn't wrote when genarated?
Anyway I will not encourage to use paper wallet to hold your bitcoin. I will suggest to install open source wallet like
electrum and verify signature. So you will have a bitcoin wallet and you will have full control of your wallet as well. More better if you could by a hardware wallet like Ledger nano if you can afford. So your fund will be more secure, otherwise electrum is best option for you. You should select standard wallet if you want to use Legacy address instead of SegWit.
There is some concern about paper wallet like there is only single address and there is no change address. So there is chance of lost your funds during make partial transaction from paper wallet and I believe you aren't even familiar with change address.
However, either you create paper wallet or electrum, you should write your seed/private keys to multiple paper and keep save them on multiple places as well to avoid further loss. Do not save your private keys and seed to any online machine.