You may change your account password at any time at your own discretion.  Even if you change your account password every day, it is not a problem because it is your personal safety. If you are the actual owner of that account then changing the password is nothing to fear for you.  Changing the account password is feared by those who hack the account or try to use it by buying the account.  Because there are many people in this forum who check the account of changed password many times. so if the password of a hacked account or purchased account is changed and since then a different user starts using that account then that account is often reported due to which the account may get red tag. So I don't think changing your personal account password will cause any problem