you are member of PW since 2015 you shall use wisdom and stay calm.
goto a workshop which can perform compression test for you. IF the wet & dry readings are under 160 psi your engine need either head work or 1st stage over haul. with standard parts.
coolant leakage may be due to bad radiator cap or faulty expansion tank.
Dial for Obama Car & truck centre 0321 4106898 they can help you go through the process.