Higgs field is``not'' the process that gives mass to free particles

When a free particle move in higgs field, higgs field ``resist'' against motion of that free particle, and then free particle gain ``drag force'' by interacting with higgs field. so Higgs field is ``not'' the process that gives mass to free particles. because higgs field ``Decelerate'' free particle by resistance. and also from einstein's special relativity theory we know that the process that gives mass to free particle is ``difference between square of total energy and square of momentum'' (through a binomial conjugates) $m_o=\frac {\sqrt {(E^2-P^2.c^2)}} {c^2}$ and when there is ``no'' difference between total energy and momentum $E=P.c$ the free particle is photon. now, there is a special point here, ``how is it possible that one free particle gain rest mass'' through ``two'' process!? why Higgs field is not considered a force. while it can decelerate free particle by ``resist''!? the Higgs field which just causes a ``drag'' = force not mass.