Is possible to open a personal savings account in the bank and always send money to that account and when you are ready to collect the money, bank will give it to you, my question is, is it possible to also creat a Bitcoin wallet and always send Bitcoin to it as a savings? if you do that for some year without going back to the wallet, will anything happen to your Bitcoin or the wallet?
The question you are curious about and want to know the answer to is never stupid. The example given in the question actually describes the working order of centralized financial structures. Cryptocurrencies do not have a center due to their structure and therefore it is not possible to say that they work exactly with the same logic as the bank. Based on the question asked I can make a recommendation as follows;
You can get a cold wallet for yourself. You can send Bitcoin in the amount you want to save in this wallet continuously and you will never use your funds in this wallet. Thus, you save money just like you have a savings account and you can access this savings whenever you need it. Also, there is no need to go to any branch or institution for get your savings back. However, you will not have a trust problem for the savings you have made because these savings are not actually stored in the vault of a centralized financial institution.