I believe it's a wrong move allocating once Bitcoin as collateral for some loan amount, I consider it a weak thinking and should be avoided. This forum is one platform that is able by some members to give out loans, yet we've never or I personally haven't witnessed a situation where Bitcoin not just any asset is being given as per collateral even the person issuing the loaned amount never asks for Bitcoin as collateral. Now let's imagine given Bitcoin as a collateral which the sent amount will be equivalent to dollar value of the Bitcoin, that means If by any circumstances unable to meet up the loan return then the lender is left by no option than to take the collateral (Bitcoin), if the lender understands the value of Bitcoin and decides to hold, in few or more period he might be getting X2 of what was sent as collateral.
Get back on topic, buy on dips and hold.
Do not bring or continue the conversation towards loans and lending because that is out of the idea in this topic.
Take a lot of time to understand properly how to invest properly, because you are betting money in this investment, so make one wise decision to succeed.
Practice investing in the early stages, strengthen the budget first for your living needs, set aside a few percent because investment is not for one week but one year, five years, ten years and can even last a lifetime. So little by little it will become a hill. Just buy routinely like most people have done.